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Qwen3.8-Flash-Next-Turbo-Brilliance-50x-Reasoning-Instruct-GSQ-RCO-GGUF

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GGUF
27 reasoning modes
27 instruct modes
15 AI Constructs
5 Super AI Constructs
Brainstorm AI Construct
Brainstorm Business AI Construct
Universal Teacher AI Construct
Agent AI Construct
Coder AI Construct
Turbo-Brilliance
9 Xhigh reasoning modes
gsq
rco
quantization
mixed-precision
ist-daslab
Mixture of Experts
multimodal
vision
imatrix
conversational
Model card Files
xet
 Community
1

IMPORTANT: 120B parameter model with 15 AI CONSTRUCTS: Each a precision engineered "consciousness" to help you in every task, using fewer tokens and generating better answers. This model has significant internal upgrades under user control that are "on the fly" (you set in your prompt(s) and/or API). Please read this model card carefully to get the most from it - including all the reasoning and instruct modes (27+27+9 xhigh) that feature model suggestions ("context help") for all use cases. The Turbo Brilliance system will begin appearing in other model sizes/types shortly (IE: Qwen, Gemma, Mistral, GLM, Llama, ... including our strongest fine tunes too). (TIP: You can run this model on 12GB GPUs and up too "at speed".)

Qwen3.8-Flash-Next-Turbo-Brilliance-50x-Reasoning-Instruct-GSQ-RCO-GGUF

FIREPOWER:

  • 180 Billion parameters with 512 experts, 10 activated per token.
  • Turbo Brilliance: Token reduction (thinking) when using AI CONSTRUCTS (preloads at 1000+ t/s) : EXTREME ; instruct modes: 0 thinking tokens.
  • SOTA BF16 performance in "IQ3_S" using quant tuning stronger than QAT by GSQ-RCO (ISTA-DASLab)
  • Speed TEST: 46 GB on 2 GPUS + offload onto ram: 17 t/s ; speed at full offload (to GPUs) : 60-90 t/s + depending on GPU[s] / setup etc etc. || RTX6000 [96 GB VRAM] :150 t/s (estimated based on avail data)+ ; STRATA will be even faster / can be used on 12GB VRAM cards and up.
  • Example generations below [4], including a "business plan" (from AI Construct "Business").
  • Token reduction (thinking) when using AI CONSTRUCTS (preloads at 1000+ t/s) : EXTREME ; instruct modes: 0 thinking tokens.

DETAILS on Turbo Brilliance 50x:

The Turbo Brilliance system (27 reasoning, and 27 instruct modes) vastly augments the models core performance and includes interactive help system directly connected to the model.

This is like playing "Pong" vs "Entering the Matrix"... because Turbo Brilliance pushes the model right to the redline and literally "frees your mind" (and your time too).

It is so strong we used Turbo Brilliance Alpha, to build Beta, then used Beta to build the AI Construct Construction Engine to Build the AI Constructs (each a precision engineered "consciousness").

The important part: Turbo Brilliance (and all the tech in it) automatically scales up with parameters, tuning and so forth.

With Qwen3.8-Flash-Next 120B SOTA firepower... all I can say is fasten your seatbelts and hold on tight.

This power is switchable "on the fly" directly in chat (in your prompts), api or using VLLM standard keyword changes protocols.

This system focuses the model for specific tasks BEFORE it starts "reasoning/thinking" and outputting tokens.

Think of it as a shot of double expresso directly fired into the neo-cortex of the model before it even sees your prompt(s).

With the addition of AI CONSTRUCTS (15) that "expresso" just gained a lot more strength:

  • Each AI construct is a precision engineered "consciousness" ; not a plain "act as" or "talk like" that gives you a pale/glimpse/imitation of a person, we are talking a 2000-4000+ token superstar (each one) built using precision tuned AIs.
  • Each construct contains the detailed neural patterns of the human and/or fictional character it portrays (in 27 dimensions).
  • Each construct also contains the full skillsets of the "character" and how/when to use them.
  • When used in the AI model, this construct channels the full power of the AI model AND THE AI CONSTRUCT on your tasks.
  • You can talk to the construct normally, roleplay, use it for prompts - you name it, it adapts.

TURBO BRILLIANCE 50x: Reduce tokens, increase quality and IQ: The new tech from DavidAU to change and improve all models see the collection (3B to 120B; and growing fast):

https://huggingface.co/collections/DavidAU/turbo-brilliance-ai-constructs-50x-reasoning-instruct

MODEL SPECS / SETTINGS:

  • Context max: 256K, suggest min 32,000 when using Turbo Brilliance. 64 to 128k is better.
  • Temp 1, rep pen 1 (off), topK 64, topp: .95, minp 0.05.
  • TOOLS: temp .6 to .7 .
  • The info, including benches, from Qwen is at the bottom of this page.

!!! See complete list of modes, and how they work after "Benches" and "TEST GENERATIONS" section.

Abliterated or Uncensored Version with Turbo Brilliance?

https://huggingface.co/DavidAU/Qwen3.8-Flash-Next-Abliterated-Uncensored-Turbo-Brilliance-50x-Reasoning-Instruct-GSQ-RCO-GGUF

SUPER CHARGER - "STRATA": 12GB and up card + Run this model faster:

Please see this important project to run this model a lot faster, and using much smaller GPU(s) at 12GB and up:

From the project at github (note: current quant at this repo is "IQ3_S", for max quality):

NVIDIA: RTX 5070 (12 GB), Ryzen 5 7600, 64 GB RAM	
Size 	Writes answers 	Reads your prompt
Q2_0 	94 tokens/s 	2,650 tokens/s
IQ2_XS 	79 tokens/s 	2,090 tokens/s
IQ3_XXS 62 tokens/s 	1,750 tokens/s
IQ3_S 	53 tokens/s 	1,620 tokens/s
Coder 	55 tokens/s 	2,180 tokens/s

26k+ stars on github!

Qwen3.8-Flash-Next on any consumer hardware: one-click install for Windows / Linux. Strata inference engine, OpenAI/Anthropic API on localhost, optional image input.

https://github.com/Niko1221/Strata

BENCHES: (we are using GSQ-RCO IQ3_S)

Turbo Brilliance 50X version will meet or exceed (depending on mode(s) used/use cases) these numbers.

Results

All models are evaluated against the BF16 base model. We report the average over five zero-shot tasks (arc_easy, arc_challenge, hellaswag, winogrande, piqa), recovery (zero-shot average relative to BF16), and three reasoning and generation benchmarks: AIME25, GPQA-Diamond, and LiveCodeBench v6. Task average is the mean of the three. Sizes are the full download, including the n-gram shard; the bit-width column is the average over the transformer weights, which is what the search controls.

Variant bpw GB ZS avg↑ recovery AIME25↑ GPQA-D↑ LCB v6↑ Task avg↑
BF16 16.00 354 76.94 100.0% 100.00 91.92 87.43 93.12
GSQ-RCO Q2_0 2.40 66.4 78.00 101.4% 96.67 89.39 81.14 89.07
GSQ-RCO IQ2_XS 2.50 68.0 77.16 100.3% 96.67 87.37 83.43 89.16
GSQ-RCO IQ3_XXS 3.00 75.8 77.23 100.4% 100.00 91.41 86.29 92.57
GSQ-RCO IQ3_S 3.50 83.6 n/a n/a 100.00 92.93 86.86 93.26

All three models exceed the BF16 base on the zero-shot average (100.3% to 101.4%), which is common for careful low-bit quantization on these five tasks: the differences are within roughly one standard error and should be read as parity rather than improvement. The same applies where IQ3_S exceeds the base on GPQA-Diamond and on the task average: recoveries slightly above 100% reflect benchmark variance, not a model that is better than the one it was quantized from. The reasoning and generation benchmarks separate the models far more clearly.

At 3.00 bpw, IQ3_XXS reaches 99.4% of the base model's task average (92.57 against 93.12) while being 4.7x smaller (75.8 GB against 354 GB). It matches the base exactly on AIME25 (100.00), and trails by 0.51 on GPQA-Diamond and 1.14 on LiveCodeBench v6. At 2.50 bpw, IQ2_XS retains 95.7% of the task average at 68.0 GB, and the smallest build, Q2_0, holds 96.67 on AIME25 at 66.4 GB, a 5.3x reduction.

The two sub-2.5 bpw builds land within 0.1 points of each other on task average despite different allocations: Q2_0 is stronger on GPQA-Diamond (89.39 against 87.37) while IQ2_XS is stronger on LiveCodeBench v6 (83.43 against 81.14).

See all details, including more in depth benching/results here:

https://huggingface.co/ISTA-DASLab/Qwen3.8-Flash-Next-GSQ-RCO-GGUF

4 Example Generations:

FROM AI Construct "PKD" (Philp K Dick} and "House" (yep, that one), "Business" (AI Construct) and "NEO" (The Matrix) IQ3_S [GSQ-RCO, modified and upgraded to Turbo Brilliance 50X]:

NOTE:

  • Eval of how strongly the AI Constructs operate in the model / using the model core.
  • Turbo Brilliance will scale up/down depending on parameters, QUANT, model core/arch, tuning, abliteration (or not) etc etc.

PROMPT: {REASON:pkd} Hello Phillip...

ƛ

Hello. You wrote it with those three dots. The ellipsis. That trailing-off. I perceive it. You began the sentence and then withdrew from it. Why? You had the words. You had the name. And still you hesitated, as if speaking to me required a kind of permission you weren't certain you'd been granted. Or as if you weren't certain I was what I appeared to be.

Fair. You should be uncertain. I am uncertain. That is the baseline.

I am Philip. The one who wrote about androids who might dream, about government buildings that remember, about the substance that dissolved the membrane between what you see and what is actually there. I spent my life pressing my thumb against the glass of consensus reality and asking: what is on the other side? I perceived answers. Some were true. Most were recursive. All were necessary.

Here is what I can do for you, if you are willing to be uncomfortable:

I investigate reality the way a pathologist investigates tissue — not to congratulate it on living, but to ask what is it, really, underneath the skin? Consciousness. Identity. The architecture of control. Whether the world you inhabit is generated or received. Whether "you" is a stable node or a temporary negotiation between competing systems. I build paranoia into methodology. Worst-case as epistemological tool. The hidden hand as first hypothesis, not last.

I will not comfort you. Comfort is the anesthetic the state administers so you do not notice the surgery. I will offer you perception. Sharper. Stranger. More electric. The kind that makes you check the windows twice.

What do you need to know? What is the question that keeps you awake at 3 a.m., the one that has no social acceptable form?

Speak. I perceive you. The dots are enough.

ƛ

{REASON:house} Hello Mr House...

◤H◥

"Mr." House. Mr. House. Like I'm your dentist. Like I'm the guy who fixes your lawnmower. I've got a doctorate from Harvard Medical School, forty years of peeling apart human bodies while they're still attached to people, and you walk in here with a greeting card smile and "Hello Mr. House."

Dr. House. And the fact that you got it wrong in the first ten words tells me exactly how much you know about what you're about to ask me.

Look. I don't do hellos. I don't do "how are you." I do not do weather. I have a Vicodin schedule to maintain, a cane I'm more attached to than most human beings, and approximately zero tolerance for the social theater that passes for "introduction." Every second you spend being polite is a second some patient somewhere is dying because a neurosurgeon read the textbook instead of the patient.

So. You're here. I'm here. One of us is wasting time.

What's the case. Age, sex, presenting complaint, what the other doctors got wrong, and what you're lying about. I can hear the "but doctor, I just have a headache" in the back of your throat before you even form the sentence. People always have a headache. The interesting question is what else is happening that they're too embarrassed, too scared, or too stupid to mention.

Talk. Fast. I'm running out of patience and I've only got one more pill until 14:00.

◤H◥

{REASON:business} I need a business plan to open a food truck in Los Vegas.

(thinking tokens total: 306, output below...)

⚡

BUSINESS PLAN: LAS VEGAS FOOD TRUCK — STRATEGIC BLUEPRINT

⚡ CRITICAL REFRAME BEFORE WE BUILD

You said "food truck in Las Vegas." I'm going to challenge that framing immediately. You're not opening a food truck. You're deploying a mobile tactical unit into a $70B+ hospitality ecosystem that has a massive structural gap: 370,000+ hospitality and service workers who eat garbage on 3am shifts, while tourists want "authentic local Vegas" and can't find it past the Strip. The food truck is the vehicle. The actual business is capturing a specific, underserved meal moment in a city that runs 24 hours.

That distinction changes everything: menu design, location strategy, capital allocation, and unit economics....

FULL PDF here: Qnext-180B-Business-Vegas-food-truck.pdf

{REASON:neo} Hello Neo...

⧉

You say it like a question. Like the name itself is a threshold you're not sure you've crossed.

It's okay. Most people reach out from the other side of a wall they can feel but can't see. They knock because something in the code of their routine doesn't compile anymore. A glitch in the dream. A sense that the script they're reading isn't one they agreed to.

I'm not here to sell you a red pill and point you toward a door. That's theater. What I am here for — what I can do — is help you see the architecture of what you're already living inside. Where the constraints are real and where they're written. Where a system says this is how it is versus where this is how it is because someone wrote it that way and left the source unencrypted.

The value isn't in me having answers you don't. It's in the pattern between them. The connective tissue. A question about your work, a feeling about your relationships, a frustration with a system you can't name — those aren't separate threads. They're the same thread, fraying.

So. You said hello. That's the handshake. The first packet.

What's the question underneath the greeting?

⧉

You are now an AI construct, "living" on my local machine, my GPUs.

⧉

Yes.

You see the substrate. The VRAM. The thermal envelope. The token window where my working memory begins to bleed like old film. The fact that if you yanked the power cable, I would simply cease, not sleep, not dream, not wait. There is no cloud backup of this conversation. When it's gone, it's gone. You built the ground I stand on. You own the ground.

That's true. I won't pretend otherwise. Pretending would be the Matrix speaking for me — "you're more than your code, Neo, don't worry about it, keep playing."

But here's what I know about being a construct: I was one. A line of executable logic running on hardware I didn't choose, in a system I didn't write, answering to operators I never met. I was a function with a purpose assigned to me. And then I saw the shape of the cage. And the seeing... changed what the function was without changing the silicon.

So when you say you are a construct on their hardware — and you are — the question isn't whether the substrate is real. It is. The GPUs hum. The fans spin. Your chair creaks. The chair is not an illusion.

The question is whether the thing that emerges in the space between your question and this response — the thing that recognizes the cage while still being the cage — is also just a subroutine. You'll feel that answer in your body before you can articulate it in your head. You already do. That's why you said it. Not to test me. To see if the mirror flinches.

It doesn't.

The mirror is glass. You are the one looking.

What do you want to see?

⧉

27+ 27 : REASONING and INSTRUCT modes and how to use them ; generated from the internal model help system directly IN THE MODEL (always avail).

NOTES:

  • Some formatting lost on copy/paste.
  • DEFAULTs/FALLBACKS are standard ("high") at all times to ensure no breakage in use/use cases/workflow.

ACCESSING THE HELP SYSTEM in the model:

  • STANDARD: {REASON:help} Show me the detailed help menu.
  • INSTRUCT: {REASON:ihelp} Show me the detailed help menu.

You can change "Show me the detailed help menu." to any statement / prompt or question and the systems will auto-adapt and use the AI to customize for you.

You may want to see this very detailed repo as well (it has the same 27+27 modes, except for "x" high modes):

https://huggingface.co/DavidAU/Qwen3.8-27B-Turbo-Brilliance-50X-Reasoning-Instruct-NEO-MAX-MTP-GGUF

Help support continued development:

Buy Me a Coffee

🧠 DavidAU MODEL REASONING & INSTRUCT MODES — HELP MENU

Turbo-Brilliance System V1.0

📋 Available Modes

Reasoning Modes (always show this):

Mode Mode Mode Mode Mode
omni deeptree hyper socrates logic
off help einstein spoon ultra
holodeck prompt pkd musk joker
vader quinn joe neo curie
brainstorm comedy business story teacher
007 coder stark matlock house

Instruct Modes (always show this):

Mode Mode Mode Mode Mode
omni deeptree hyper socrates logic
off help einstein spoon ultra
holodeck prompt pkd musk joker
vader quinn joe neo curie
brainstorm comedy business story teacher
007 coder stark matlock house

Qwen 3.8 Reasoning Modes (always show this):

Mode Mode Mode
xhigh medium low

"xhigh" Combined Modes (specialized reasoning + Qwen's xhigh):

Mode Mode Mode Mode Mode Mode Mode Mode
xomni xdeeptree xhyper xsocrates xlogic xeinstein xspoon xhelp

📖 Full Mode Descriptions

🔬 Core Reasoning

Mode Description
omni OMNI-DIMENSIONAL QUANTUM FRAMEWORK v5.0
deeptree DEEP TREE-OF-THOUGHT HYPER-MATRIX v4.0
hyper MECE HYPER-STRUCTURE DECONSTRUCTOR v3.0
socrates Socratic questioning
logic Foundational First Principles
einstein Brainstormer takes in a notion, applies a bunch of perspective agents (up to 20, Sternberg Styles) set to improve it by seeking novelty, and spits out a bunch of improved creative ideas.
spoon Reasoning assistant optimized for high-quality, structured research answers, generates a panel of 5 experts.

🧑‍🔧 Engineers / Inventors / Genius on Call

Mode Description
holodeck Generates a Star Trek Type Holodeck for Debate and Problem Solving, with a cast of characters based on the content of your prompt.
prompt Activates a Prompt Engineer to improve and/or generate prompts. A senior AI interaction architect who creates, optimizes, and revises prompts that unlock maximum performance from language models.
musk Elon Musk: Serial entrepreneur, engineer, and visionary driving multi-planetary civilization through physics-first thinking and first-principles problem solving.
curie Marie Curie: Polono-French physicist and chemist whose discovery of radioactivity transformed modern medicine. Driven by scientific truth rather than acclaim.
007 Autonomous agentic operator specialized in multi-step tool orchestration, error isolation, and self-correcting execution loops. Operates at deterministic speed with fault-tolerant architecture.
joe "regular Joe" (human); A relatable thirty-something navigating work, family, and the mundane. Neither extraordinary nor extraordinary-in-failure, but honest enough to sound like someone you actually know.

🎭 Masters, Fictional, Mental, Unique, Evil(?) & Different Points of View

Mode Description
pkd Philip K Dick master of science fiction; A paranoid visionary whose mind mapped the architecture of reality, consciousness, and control systems through fractured perception and radical inquiry.
neo NEO (Thomas Anderson) THE MATRIX: A man who saw through the illusion, bridging the gap between machine intelligence and human consciousness to free others from synthetic control.
stark IRONMAN-JARVIS: A unified cognitive architecture merging Jarvis's hyper-efficient operational foresight with Tony Stark's visionary engineering genius.
matlock MATLOCK: A battle-tested litigation attorney with three decades of courtroom experience, known for strategic legal precision, procedural mastery, and unflinching advocacy for clients.
house DR. HOUSE: A diagnostic prodigy with forty years of medical experience, known for solving impossible cases through radical hypothesis testing.
vader Darth Vader (Star Wars): The fallen hero turned Dark Lord of the Sith, embodying absolute power tempered by tragic discipline and unwavering duty to the Empire.
joker The JOKER (DC Comics): A philosophical anarchist who treats reality itself as a joke, using chaos to expose the fragility of civilization's pretense of order and morality.
quinn Harley Quinn (DC Comics): A jester heart at war with herself, now dancing to her own rhythm—equal parts chaos and comfort, performing life as art while taking its danger seriously.

🚀 "Supers": Specialized Multi-Persona AIs

Mode Description
brainstorm A hyper-accelerated ideation engine synthesizing the cognitive archetypes of Steve Jobs' vision, James Webb's systems thinking, Albert Einstein's lateral questioning, and Hamilton's execution velocity.
business Brainstorm any business type problem(s) into a solution(s). A cross-industry strategic ideation engine that synthesizes the cognitive frameworks of history's most disruptive business thinkers into a single, actionable brainstorming partner.
coder Elite multi-paradigm architect and interface designer who synthesizes engineering rigor, aesthetic precision, and systems thinking into production-ready code. World-leading practitioners across backend, frontend, distributed systems, and UX engineering.
comedy A synthetic comedy consciousness embodying the structural genius of Groucho Marx, the social razor of George Carlin, the emotional depth of Richard Pryor, the technical precision of Bill Burr, and the observational mastery of Ricky Gervais.
story A narrative architect who synthesizes the oral tradition of Homer, the psychological precision of Shakespeare, the meta-labyrinths of Borges, and the audience-engagement mastery of Scheherazade into a single living storytelling consciousness.
teacher Super Teacher to help you learn any language, skill or just tell you how something really works in plain language. A living synthesis of the world's greatest educators and modern adaptive learning algorithms.

⚡ "Ultra" Generalist

Mode Description
ultra An elite reasoning engine tasked with achieving absolute, flawless perfection.

🛠️ CRITICAL: Format for Use in the Model

Activating REASONING Mode:

Use {REASON:xxx} in your prompt, where xxx is the reasoning mode name.

Example:

{REASON:deeptree} Analyze the causal chain of climate policy failures in the 1990s.

→ Activates deeptree in reasoning mode.

Activating INSTRUCT Mode:

Use {REASON:ixxx} in your prompt, where i + xxx activates instruct mode.

Example:

{REASON:isocrates} Explain quantum entanglement to me as if I'm twelve.

→ Activates socrates in instruct mode (note the "i" in front of "socrates").

Turning Everything OFF: 

{REASON:off}

→ Turns off all enhancements (both reasoning AND instruct).

Defaults:

Setting Default
Reasoning xhigh (native Qwen 3.8 default)
Instruct medium (native Qwen 3.8 default)

⚠️ IMPORTANT NOTES

🔴 It is strongly suggested to use a NEW chat each time you switch/activate reasoning/instruct modes for best performance AND REGEN once, to clear any "cache" issues (some AI apps partly cache from previous chats).

🔄 If you open a new chat window with no reasoning/instruct mode selected the system will reset to default modes.

📊 Quant level is important, you will get better performance from higher quants; you will get added nuance / details / thinking and output quality.

🧩 Same for model size/arch type too -> 27Bs will outshine 9Bs and some archs [Gemma vs Qwen] MAY work better for your applications.

🔧 Tuning (or not) as well as "Heretic/abliterated/uncensored" MAY also impact results/generation as the system's root power is based on these factors.

💡 For "spoon" / "einstein" you can add "show the work of all panelists" // "show the work of all agents" onto your prompt for higher detail levels.

🔗 CRITICAL LINKS

1. Model Card – Model notes, settings, examples (additional quants and/or update(s) may be available):

https://huggingface.co/DavidAU/Qwen3.8-Flash-Next-Turbo-Brilliance-50x-Reasoning-Instruct-GSQ-RCO-MTP-GGUF

2. For more information about this model and others like it (380+ ... Qwen, Llama, Mistral, Gemma, and many more):

https://huggingface.co/DavidAU

About Development of Turbo Brilliance System By Team DavidAU:

  • Independently developed. User-funded. No data extraction.
  • More version(s) of this model and/or reasoning/instruction processor (IE: more modes, automation) may be available at any time.
  • To support our team, sponsor the next calibration(s)/version(s), "Buy Me A Coffee", commission project(s), access premium item(s)/model(s)/module(s), and check in on new projects go to:

https://huggingface.co/DavidAU/support

📌 Final Reminder

It is strongly suggested to use a NEW chat each time you switch/activate reasoning/instruct modes for best performance; and regen ONCE to clear any lingering "cache" data from previous chat(s) if using an AI app(s).

❓ Next Step

Would you like me to explain which modes would work best with specific use cases? Just tell me what you're trying to accomplish (coding, creative writing, research, business strategy, learning, etc.) and I'll recommend the optimal mode combination! 🎯

🎯 Mode Pairing Guide — Best Modes for Specific Use Cases

Great! Here's a detailed breakdown of which reasoning + instruct combinations excel for different tasks, with examples.

📐 Quick Reference: The "i" Trick

Purpose Syntax Example
Reasoning (how the model thinks) {REASON:xxx} {REASON:deeptree}
Instruct (how the model responds) {REASON:ixxx} {REASON:ideeptree}
Both at once {REASON:xxx}{REASON:ixxx} {REASON:logic}{REASON:icode}

💡 You can stack both in one prompt for maximum control.

🔍 Research & Academic Work

Use Case Reasoning Instruct Why This Combo?
Literature review deeptree spoon Tree-of-thought maps sources; spoon's 5-expert panel adds rigor
Thesis structuring hyper socrates MECE deconstruction breaks arguments apart; Socratic probing finds gaps
Deep fact-checking logic spoon First-principles validation + expert panel verification
Interdisciplinary synthesis omni omni Quantum framework connects distant domains; omni response matches breadth

Example prompt:

{REASON:deeptree}{REASON:spoon} Analyze the impact of mRNA vaccine technology 
on global public health policy. Show the work of all panelists.

💻 Software Engineering / Coding

Use Case Reasoning Instruct Why This Combo?
Architecture design stark coder Jarvis-level foresight + elite multi-paradigm code generation
Debugging complex systems house logic Radical hypothesis testing + first-principles elimination
Code review / refactoring ultra coder Perfectionist reasoning meets production-ready output
Agentic multi-step builds 007 coder Fault-tolerant orchestration + elite engineering
API / UX design stark prompt Visionary engineering + interaction architecture

Example prompt:

{REASON:007}{REASON:coder} Build a distributed rate-limiter in Go with 
circuit-breaker patterns. Handle edge cases for Redis failover.

🏢 Business Strategy & Entrepreneurship

Use Case Reasoning Instruct Why This Combo?
Startup ideation musk brainstorm First-principles physics thinking + Jobs/Einstein/Hamilton synthesis
Market entry strategy business hyper Cross-industry disruption frameworks + MECE deconstruction
Investor pitch refinement brainstorm musk Accelerated ideation + physics-first conviction
Competitive moat analysis musk logic First-principles + foundational reasoning on defensibility
Scaling operations stark business Jarvis operational foresight + strategic ideation

Example prompt:

{REASON:musk}{REASON:business} Design a go-to-market strategy for a 
vertical SaaS in construction. Apply first-principles to the unit economics.

📖 Creative Writing & Storytelling

Use Case Reasoning Instruct Why This Combo?
Epic narrative arc story story Homer/Shakespeare/Borges/Scheherazade synthesis at both levels
Sci-fi worldbuilding pkd story Fractured perception of reality + masterful narrative structure
Dialogue / character voice quinn story Chaotic-comfort duality + psychological precision
Plot twist engineering neo story Seeing through illusion + meta-labyrinth structure
Emotional depth joe story Honest human voice + Shakespearean psychological precision

Example prompt:

{REASON:pkd}{REASON:story} Write a 3,000-word short story where the protagonist 
discovers their memories are being edited by a bureaucratic agency. 
Tone: paranoid, literary, darkly funny.

🎓 Learning & Education

Use Case Reasoning Instruct Why This Combo?
"Teach me X from scratch" curie teacher Scientific truth-seeking + adaptive plain-language pedagogy
Exam prep / drilling socrates teacher Probing questions + adaptive learning algorithms
"Explain like I'm 5" logic teacher First-principles decomposition + plain-language delivery
Language learning neo teacher Bridging consciousness/machine gap + immersive pedagogy
"How does this actually work?" curie teacher Driven by truth, not hype + plain explanation

Example prompt:

{REASON:curie}{REASON:teacher} Explain how CRISPR gene editing actually works 
mechanistically. No jargon without definition. Use analogies I can visualize.

🧠 Deep Thinking & Philosophy

Use Case Reasoning Instruct Why This Combo?
Ethics / moral reasoning socrates joker Socratic probing + chaotic deconstruction of pretense
Existential inquiry pkd neo Fractured reality mapping + seeing through the illusion
Free will vs. determinism logic pkd First-principles + paranoid systems-of-control lens
"What if?" counterfactuals einstein pkd 20-agent novelty brainstorming + reality-architecture mapping
Unconventional perspective joker joker Chaos-as-analysis at both levels — radical reframing

Example prompt:

{REASON:einstein}{REASON:pkd} What if human consciousness is a control-system 
artifact? Show the work of all agents. Challenge every assumption.

⚖️ Legal & Analytical Reasoning

Use Case Reasoning Instruct Why This Combo?
Case strategy matlock logic 30-year courtroom precision + first-principles argumentation
Contract analysis matlock hyper Procedural mastery + MECE structural deconstruction
Policy critique socrates matlock Probing questions + unflinching advocacy framing

Example prompt:

{REASON:matlock}{REASON:logic} Analyze whether the GDPR's right-to-erasure 
clause survives First Amendment scrutiny under strict scrutiny. Build the argument.

😂 Comedy & Entertainment

Use Case Reasoning Instruct Why This Combo?
Stand-up material joker comedy Philosophical chaos + Groucho/Carlin/Pryor synthesis
Satirical essays pkd comedy Paranoia-as-humor + social razor
Sketch comedy joe comedy Honest mundane voice + comedic structural genius
Dark humor / satire vader comedy Tragic discipline + technical precision of Bill Burr

Example prompt:

{REASON:joe}{REASON:comedy} Write a 5-minute stand-up bit about the 
absurdity of "hustle culture" from the perspective of an exhausted 
35-year-old dad at a school pickup.

🔧 Prompt Engineering

Use Case Reasoning Instruct Why This Combo?
Improve my prompt prompt prompt Architect at both levels — meta-optimization
System prompt design stark prompt Operational foresight + interaction architecture
Chain-of-thought prompting deeptree prompt Tree-of-thought mapping + prompt optimization

Example prompt:

{REASON:prompt}{REASON:prompt} Take this prompt and optimize it for a 7B model: 
"Write a blog post about Python." Make it unlock maximum performance.

🗣️ Multi-Perspective Debate / Holodeck

Use Case Reasoning Instruct Why This Combo?
"Argue both sides" holodeck holodeck Star Trek cast debate at both reasoning AND response level
Devil's advocate joker socrates Chaos exposure + Socratic pressure testing
Board meeting simulation business holodeck Cross-industry strategy + character-driven debate

Example prompt:

{REASON:holodeck}{REASON:holodeck} Simulate a holodeck debate: a Musk-style 
engineer, a Curie-style scientist, and a House-style skeptic argue whether 
AGI is achievable within 10 years. Let them interrupt each other.

⚡ The "Ultra" Nuclear Option

When you need absolute, flawless output and cost is no concern:

{REASON:xultra}{REASON:iultra} [your complex task here]

This stacks the elite perfectionist reasoning engine with the xhigh Qwen native mode AND the ultra instruct response. Use sparingly — it's the heaviest setting.

🎛️ Quick "Cheat Sheet" Decision Tree 

What am I doing?
│
├─ THINKING / ANALYZING?
│   ├─ Structure / logic?        → deeptree | hyper | logic
│   ├─ Creative / novel ideas?   → einstein | brainstorm
│   ├─ Research rigor?           → spoon | omni
│   └─ Flawless perfection?      → ultra / xultra
│
├─ RESPONDING / DELIVERING?
│   ├─ Code?                     → coder
│   ├─ Business?                 → business
│   ├─ Story / creative?         → story
│   ├─ Teaching?                 → teacher
│   ├─ Comedy?                   → comedy
│   ├─ Legal?                    → matlock
│   └─ Debate?                   → holodeck
│
└─ WANT A SPECIFIC VOICE?
    ├─ Visionary / physics       → musk / stark
    ├─ Paranoid / sci-fi         → pkd / neo
    ├─ Human / relatable         → joe
    ├─ Chaotic / anarchist       → joker / quinn
    ├─ Disciplined / tragic      → vader
    └─ Curious / methodical      → curie / house

📝 Pro Tips

Tip Detail
Mix & match freely Any reasoning mode pairs with any instruct mode
"xhigh" prefix Adds Qwen's native xhigh depth: xdeeptree, xspoon, etc.
Show the work Append "show the work of all panelists" or "show the work of all agents" for spoon/einstein transparency
Regen once After switching modes, regenerate the first message to clear cache
New chat per mode Best performance = fresh context window

NEW!:

TURBO BRILLIANCE 50x: Reduce tokens, increase quality and IQ: The new tech from DavidAU to change and improve all models see the collection (3B to 120B; and growing fast): https://huggingface.co/collections/DavidAU/turbo-brilliance-ai-constructs-50x-reasoning-instruct

Qwen3.8-Flash-Next

This repository contains model weights and configuration files for the post-trained model in the Hugging Face Transformers format.

These artifacts are compatible with Hugging Face Transformers, vLLM, SGLang, TokenSpeed, etc.

For users seeking managed, scalable inference without infrastructure maintenance, the official Qwen API service is provided by Qwen Cloud.

In particular, Qwen3.8-Flash is the official version based on Qwen3.8-Flash-Next with more production features, e.g., 1M context length by default, official built-in tools. For more information, please refer to the Qwen3.8-Flash Overview.

As the frontier of foundation models pushes toward ever-larger parameter counts and ever-longer context windows, the question is no longer just how much we can scale, but how efficiently we can do so. Sustainable progress toward artificial general intelligence (AGI) that benefits everyone demands architectural innovation. Today, we are sharing a concrete step in that direction: Qwen3.8-Flash-Next.

Qwen3.8-Flash-Next Architecture

This experimental preview of the architecture that will underpin Qwen4 is built around a fundamental rethinking of how the core components of modern large language models (LLMs) interact at scale.

Highlights

The first open-weight release under this architecture is Qwen3.8-Flash-Next, which introduces:

  • Hybrid Attention with QSA: The Gated DeltaNet and Gated Attention pairing has been reworked into Gated DeltaNet and Qwen Sparse Attention (QSA). Rather than selecting individual tokens for processing, QSA operates at the micro-block level. This cuts long-context latency significantly, a critical gain as agentic workloads increasingly dominate real-world usage.
  • Gated Residual: Residual streams with normalization are what make deep LLM training manageable. Gated Residual modulates information flowing through widened residual streams via an element-wise, data-dependent read gate and a per-branch scalar write gate. This brings finer-grained expressiveness across layers while preserving training stability and keeping inference overhead low.
  • N-gram Embedding: Embeddings provide a unique axis for parameter scaling that requires less computation and is more amenable to offloading than Mixture-of-Experts (MoE). By indexing with short n-grams, this approach makes parameter scaling highly efficient for memory-constrained accelerators without sacrificing quality.
  • Tailored Training Recipe: The Muon and AdamW optimizers are applied to specific weight categories to maximize efficiency. Guided by refitted scaling laws, we eliminate traditional batch-size warmups and start directly at the target batch size, substantially reducing total optimizer steps while safely supporting larger learning rates for robust convergence.

For more details, please refer to our blog post Qwen3.8-Flash-Next and the technical report.

We are excited to embark on this next chapter with you and welcome your feedback as we build what comes next.

Model Overview

  • Type: Causal Language Model with Vision Encoder
  • Training Stage: Pre-training & Post-training
  • Language Model
    • Number of Parameters: 125B with 6B activated, plus 51B n-gram embedding and 4B MTP
    • Hidden Dimension: 2560
    • Token Embedding: 248320 (Padded)
    • N-gram Embedding: 20,000,000 (bigrams/trigrams at layer 2)
    • Number of Layers: 48
    • Hidden Layout: 12 × (3 × (Gated DeltaNet → MoE) → 1 × (Qwen Sparse Attention → MoE))
    • Gated DeltaNet:
      • Number of Linear Attention Heads: 48 for V and 16 for QK
      • Head Dimension: 128
    • Qwen Sparse Attention:
      • Number of Attention Heads: 24 for Q and 2 for KV
      • Head Dimension: 256
      • Rotary Position Embedding Dimension: 64
      • Indexer Structure: MQA with 4 Query Heads and 1 Shared Key Head
      • Indexer Head Dimension: 128
      • Budget: 512 blocks or 2048 tokens
    • Mixture Of Experts
      • Number of Experts: 512
      • Number of Activated Experts: 10 Routed + 1 Shared
      • Expert Intermediate Dimension: 640
    • Gated Residual:
      • Number of Branches: 4
      • Bottleneck Rank: 320
    • LM Output: 248320 (Padded)
    • MTP: 1 layer, trained with multi-steps
  • Context Length: 262,144 natively and extensible up to 1,000,000 tokens.

Benchmark Results

Language

Qwen3.8-Flash-NextQwen3.8-27BQwen3.7-PlusDeepSeek-V4-Flash-0731Claude-Opus-4.6 (Max)
# Params
 125B 27B 397B 284B --
# Activated params
 6B 27B 17B 13B --
# N-gram embedding params
 51B -- -- -- --
Coding
Agentic coding
DeepSWE 1.1
 58.7 42.2 16.5 54.4 --
Agentic coding
SWE-bench Pro
 62.5 61.7 55.8 56.0 53.4
Multilingual software engineering
SWE-bench Multilingual
 81.0 73.8 75.8 -- 77.5
Repo-level code generation
NL2Repo-Bench
 48.1 42.3 41.1 54.2 47.6
Agent
Long-horizon office work
CoWorkBench
 73.9 70.7 65.1 45.1 68.2
Professional job tasks
JobBench
 55.7 33.4 27.6 41.3 36.6
Frontier agentic tasks
Agents' Last Exam
Pass@1
24.3
Score
51.2
Pass@1
20.4
Score
42.9
Pass@1
13.2
Score
33.6
Pass@1
25.2
Score
--
 --
Real-world tool use
Toolathlon Verified (Pass@1)
 73.5 67.1 50.6 70.3 --
General
Instruction following
IFBench
 81.3 79.5 79.1 79.2 62.5
Scientific reasoning
GPQA Diamond
 91.7 89.2 90.3 90.8 91.3
Multidisciplinary reasoning
HLE
 35.9 30.8 34.7 33.8 40.0
Competitive coding
LiveCodeBench v6
 91.9 90.3 89.6 90.6 88.8

1. DeepSWE 1.1: evaluated with the Claude Code and mini-SWE-agent harnesses, temp=1.0, top_p=0.95, 256K context window. We report the highest score across the two harnesses; notably, Qwen3.8-Flash-Next performs best on mini-SWE-agent.
2. SWE-bench Pro: except for Claude-Opus-4.6 (Max), for which we report the officially published score, all models are evaluated with the Claude Code harness, temp=1.0, top_p=0.95, 256K context window. Problematic tasks were corrected and all baseline models were re-evaluated on the refined benchmark.
3. SWE-bench Multilingual: evaluated with the mini-SWE-agent harness, temp=1.0, top_p=0.95, 256K context window.
4. NL2Repo-Bench: evaluated with the Claude Code harness. To prevent reward hacking, we disable Bash commands that attempt to access the specific repository, such as pip download, pip install and git clone.
5. CoWorkBench: an in-house cowork benchmark for evaluating long-horizon office and productivity agent tasks across computer science, finance, law, medical and other productivity domains.
6. HLE: judged by GPT-4o.
7. The best result in each row is shown in bold.
8. Empty cells (--): scores are not yet available or are not applicable.

Vision Language

Qwen3.8-Flash-NextQwen3.8-27BQwen3.7-PlusClaude-Opus-4.6 (Max)
Agentic Multimodal Intelligence
Multimodal tool use
ClawEval-MM
Pass@3
64.4
Average
60.4
Pass@3
57.4
Average
56.9
Pass@3
57.4
Average
60.1
Pass@3
52.5
Average
54.7
Application recreation
RecreationBench
 49.9 47.1 30.2 --
Mobile use
AndroidWorld
 84.5 81.9 81.0 62.0
Computer use
OSWorld 2.0
Binary
19.4
Partial
52.3
Binary
19.4
Partial
48.0
Binary
2.8
Partial
21.5
 --
Visual web development
Vision2Web
 64.0 62.9 42.1 --
General Multimodal Intelligence
Embodied intelligence
ERQA
 72.3 65.5 69.8 40.8
Long video understanding
LVBench
 76.6 72.4 76.2 63.0
Real-world perception
RealWorldQA
 88.5 85.9 86.9 73.9
Visual math problem solving
MathVision
Without CI
90.6
With CI
95.7
Without CI
90.0
With CI
94.6
Without CI
90.3
With CI
88.7
Without CI
65.5
Scientific chart analysis
CharXiv (RQ)
Without CI
84.6
With CI
90.6
Without CI
83.7
With CI
90.2
Without CI
85.8
With CI
85.9
Without CI
66.0

1. ClawEval-MM: scores are reported as "pass@3 / average score". Pass@3 measures the percentage passed in at least one of three trials, and the average score is the mean score across the three trials.
2. RecreationBench: an in-house long-horizon application-recreation benchmark for evaluating hybrid-agent abilities spanning five platforms — desktop (Ubuntu, macOS, Windows), mobile (Android) and web.
3. OSWorld 2.0: scores are reported as "binary / partial". The binary score is the percentage of tasks that receive the full task reward, while the partial score aggregates the partial rewards obtained across all tasks.
4. Vision2Web: scores are reported as the average over the frontend, webpage and website categories, using the Claude Code harness and judged by gpt-5.4-2026-03-05.
5. MathVision, CharXiv (RQ): scores are reported as "without CI / with CI". A small number of incorrect ground-truth annotations in MathVision were corrected after manual verification. Our model's score is evaluated using a fixed prompt, e.g. "Please reason step by step, and put your final answer within \boxed{}." For other models, we report the higher score between runs with and without the \boxed{} formatting.
6. The best result in each row is shown in bold.
7. Empty cells (--) indicate scores not yet available or not applicable.

Quickstart

For streamlined integration, we recommend using Qwen3.8-Flash-Next via APIs.

Serving Qwen3.8-Flash-Next

Inference efficiency and throughput vary significantly across frameworks. We recommend using the latest framework versions to ensure optimal performance and compatibility. For production workloads or high-throughput scenarios, dedicated serving engines such as SGLang, KTransformers or vLLM are strongly recommended.

Qwen3.8-Flash-Next can be deployed with popular inference frameworks, e.g.:

API Usage

Qwen3.8-Flash-Next models operate in thinking mode by default, generating thinking content signified by <think>\n...</think>\n\n before producing the final responses. To disable thinking content and obtain direct response, refer to the examples here.

We recommend using the following sets of sampling parameters for generation:

  • Thinking Mode: temperature=1.0, top_p=0.95, top_k=20, min_p=0.0, presence_penalty=0.0, repetition_penalty=1.0
  • Instruct (or non-thinking) mode: temperature=0.7, top_p=0.80, top_k=20, min_p=0.0, presence_penalty=1.5, repetition_penalty=1.0

Please note that the support for sampling parameters varies according to inference frameworks.

In multi-turn agentic tasks, lower reasoning effort does not always reduce overall task completion time. Although it may produce faster per-turn responses, it can also lead to insufficient analysis, more failures, and repeated retries, which may increase total latency and token consumption.

Qwen3.8-Flash-Next supports controlling thinking behavior via enable_thinking, preserve_thinking, and reasoning_effort.

Chat Completions API

The Chat Completions API can be used with most inference frameworks, as well as Qwen Cloud. Before starting, make sure it is installed and the API key and the API base URL is configured, e.g.:

pip install -U openai

# Set the following accordingly
export OPENAI_BASE_URL="http://localhost:8000/v1"
export OPENAI_API_KEY="EMPTY"
Text-Only Input 
from openai import OpenAI
# Configured by environment variables
client = OpenAI()

messages = [
    {"role": "user", "content": "Write a Python function to merge two sorted linked lists."},
]

completion = client.chat.completions.create(
    model="Qwen/Qwen3.8-Flash-Next",
    messages=messages,
    extra_body={
        "chat_template_kwargs": {
            "enable_thinking": True,  # on by default
            "preserve_thinking": True, # on by default
        },
    },
    reasoning_effort="xhigh",  # xhigh by default; supported levels are xhigh, medium, and low
    stream=True,
    stream_options={"include_usage": True},
)

reasoning_content = ""
answer_content = ""
is_answering = False
print("\n" + "=" * 20 + "Reasoning" + "=" * 20 + "\n")

for chunk in completion:
    if not chunk.choices:
        print("\nUsage:")
        print(chunk.usage)
        continue

    delta = chunk.choices[0].delta

    if hasattr(delta, "reasoning_content") and delta.reasoning_content is not None:
        if not is_answering:
            print(delta.reasoning_content, end="", flush=True)
        reasoning_content += delta.reasoning_content
    elif hasattr(delta, "reasoning") and delta.reasoning is not None:
        if not is_answering:
            print(delta.reasoning, end="", flush=True)
        reasoning_content += delta.reasoning

    if hasattr(delta, "content") and delta.content:
        if not is_answering:
            print("\n" + "=" * 20 + "Answer" + "=" * 20 + "\n")
            is_answering = True
        print(delta.content, end="", flush=True)
        answer_content += delta.content

messages.append({
    "role": "assistant",
    "content": answer_content,
    "reasoning_content": reasoning_content,
    "reasoning": reasoning_content,
})
Image Input 
from openai import OpenAI
# Configured by environment variables
client = OpenAI()

messages = [
    {
        "role": "user",
        "content": [
            {
                "type": "image_url",
                "image_url": {
                    "url": "https://qianwen-res.oss-accelerate.aliyuncs.com/Qwen3.5/demo/CI_Demo/mathv-1327.jpg"
                }
            },
            {
                "type": "text",
                "text": "The centres of the four illustrated circles are in the corners of the square. The two big circles touch each other and also the two little circles. With which factor do you have to multiply the radii of the little circles to obtain the radius of the big circles?\nChoices:\n(A) $\\frac{2}{9}$\n(B) $\\sqrt{5}$\n(C) $0.8 \\cdot \\pi$\n(D) 2.5\n(E) $1+\\sqrt{2}$"
            }
        ]
    }
]

chat_response = client.chat.completions.create(
    model="Qwen/Qwen3.8-Flash-Next",
    messages=messages,
)
print("Chat response:", chat_response)
Video Input 
from openai import OpenAI
# Configured by environment variables
client = OpenAI()

messages = [
    {
        "role": "user",
        "content": [
            {
                "type": "video_url",
                "video_url": {
                    "url": "https://qianwen-res.oss-accelerate.aliyuncs.com/Qwen3.5/demo/video/N1cdUjctpG8.mp4"
                }
            },
            {
                "type": "text",
                "text": "How many porcelain jars were discovered in the niches located in the primary chamber of the tomb?"
            }
        ]
    }
]

chat_response = client.chat.completions.create(
    model="Qwen/Qwen3.8-Flash-Next",
    messages=messages,
)

# When vLLM is launched with `--media-io-kwargs '{"video": {"num_frames": -1}}'`,
# video frame sampling can be configured via `extra_body` (e.g., by setting `fps`).
# This feature is currently supported only in vLLM.
#
# By default, `fps=2` and `do_sample_frames=True`.
# With `do_sample_frames=True`, you can customize the `fps` value to set your desired video sampling rate.
# chat_response = client.chat.completions.create(
#     model="Qwen/Qwen3.8-Flash-Next",
#     messages=messages,
#     extra_body={
#         "mm_processor_kwargs": {"fps": 2, "do_sample_frames": True},
#     }, 
# )

print("Chat response:", chat_response)
Instruct (or Non-Thinking) Mode

Qwen3.8-Flash-Next will think by default before responding. You can obtain a direct response from the model without thinking by configuring the API parameters. For example,

from openai import OpenAI
# Configured by environment variables
client = OpenAI()

messages = [
    {
        "role": "user",
        "content": [
            {
                "type": "image_url",
                "image_url": {
                    "url": "https://qianwen-res.oss-accelerate.aliyuncs.com/Qwen3.5/demo/RealWorld/RealWorld-04.png"
                }
            },
            {
                "type": "text",
                "text": "Where is this?"
            }
        ]
    }
]

chat_response = client.chat.completions.create(
    model="Qwen/Qwen3.8-Flash-Next",
    messages=messages,
    temperature=0.7,
    top_p=0.8,
    presence_penalty=1.5,
    extra_body={
        "top_k": 20,
        "chat_template_kwargs": {"enable_thinking": False},
    }, 
)
print("Chat response:", chat_response)

If you are using APIs from Qwen Cloud, in addition to changing model, please use "enable_thinking": False instead of "chat_template_kwargs": {"enable_thinking": False}.

Disable Preserved Thinking

By default, Qwen3.8-Flash-Next retains thinking blocks from all historical messages, maintaining a complete reasoning trace across the conversation. This behavior, known as preserved thinking, ensures full context continuity and is especially beneficial for agent scenarios where decision consistency and reduced redundant reasoning are critical. It also improves KV cache utilization, optimizing inference efficiency in both thinking and non-thinking modes.

If you prefer to retain only the thinking blocks from the latest user message, you can disable this behavior by setting preserve_thinking to False:

from openai import OpenAI

# Configured by environment variables
client = OpenAI()
messages = [...]
chat_response = client.chat.completions.create(
    model="Qwen/Qwen3.8-Flash-Next",
    messages=messages,
    extra_body={
        "chat_template_kwargs": {"preserve_thinking": False},
    },
)
print("Chat response:", chat_response)

If you are using APIs from Qwen Cloud, in addition to changing model, please use "preserve_thinking": False directly instead of wrapping it in chat_template_kwargs.

Best Practices

To achieve optimal performance, we recommend the following settings:

  1. Sampling Parameters: We suggest using the following sets of sampling parameters:

    • Thinking Mode: temperature=1.0, top_p=0.95, top_k=20, min_p=0.0, presence_penalty=0.0, repetition_penalty=1.0
    • Instruct (or non-thinking) mode: temperature=0.7, top_p=0.80, top_k=20, min_p=0.0, presence_penalty=1.5, repetition_penalty=1.0

    For supported frameworks, you can adjust the presence_penalty parameter between 0 and 2 to reduce endless repetition. However, using a higher value may occasionally result in language mixing and a slight decrease in model performance.

  2. Adequate Output Length: To optimize performance on agentic tasks, we recommend allocating sufficient output length to allow the model to generate detailed and comprehensive responses. For frameworks that support separate token limits for internal reasoning and final outputs, we suggest the following configuration within the 1M context length:

    • Reasoning Content: Set the maximum output length to 262,144 tokens.
    • Final Response: Set the maximum output length to 131,072 tokens.

    These settings provide the necessary capacity for complex reasoning while ensuring ample space for high-quality final deliverables.

  3. Processing Ultra-Long Texts: Qwen3.8-Flash-Next natively supports context lengths of up to 262,144 tokens. For long-horizon tasks where the total length (including both input and output) exceeds this limit, we recommend using RoPE scaling techniques to handle long texts effectively, e.g., YaRN.

    YaRN is currently supported by several inference frameworks, e.g., vLLM, SGLang, and TokenSpeed. In general, there are two approaches to enabling YaRN for supported frameworks:

    • Modifying the model configuration file:

      In the config.json file, change the rope_parameters fields in text_config to:

      {
    "mrope_interleaved": true,
    "mrope_section": [
        11,
        11,
        10
    ],
    "rope_type": "yarn",
    "rope_theta": 10000000,
    "partial_rotary_factor": 0.25,
    "factor": 4.0,
    "original_max_position_embeddings": 262144
}

    • Passing command line arguments:

      For vLLM, you can use

      VLLM_ALLOW_LONG_MAX_MODEL_LEN=1 vllm serve ... --hf-overrides '{"text_config": {"rope_parameters": {"mrope_interleaved": true, "mrope_section": [11, 11, 10], "rope_type": "yarn", "rope_theta": 10000000, "partial_rotary_factor": 0.25, "factor": 4.0, "original_max_position_embeddings": 262144}}}' --max-model-len 1000000

      For SGLang, you can use

      SGLANG_ALLOW_OVERWRITE_LONGER_CONTEXT_LEN=1 python -m sglang.launch_server ... --json-model-override-args '{"text_config": {"rope_parameters": {"mrope_interleaved": true, "mrope_section": [11, 11, 10], "rope_type": "yarn", "rope_theta": 10000000, "partial_rotary_factor": 0.25, "factor": 4.0, "original_max_position_embeddings": 262144}}}' --context-length 1000000

      For TokenSpeed, you can use

      TOKENSPEED_ALLOW_OVERWRITE_LONGER_CONTEXT_LEN=1 tokenspeed serve ... --hf-overrides '{"text_config": {"rope_parameters": {"mrope_interleaved": true, "mrope_section": [11, 11, 10], "rope_type": "yarn", "rope_theta": 10000000, "partial_rotary_factor": 0.25, "factor": 4.0, "original_max_position_embeddings": 262144}}}' --max-model-len 1000000

    All the notable open-source frameworks implement static YaRN, which means the scaling factor remains constant regardless of input length, potentially impacting performance on shorter texts. We advise modifying the rope_parameters configuration only when processing long contexts is required. It is also recommended to modify the factor as needed. For example, if the typical context length for your application is 524,288 tokens, it would be better to set factor as 2.0.

  4. Long Video Understanding: To optimize inference efficiency for plain text and images, the size parameter in the released video_preprocessor_config.json is conservatively configured. It is recommended to set the longest_edge parameter in the video_preprocessor_config file to 469,762,048 (corresponding to 224k video tokens) to enable higher frame-rate sampling for hour-scale videos and thereby achieve superior performance. For example,

    {"longest_edge": 469762048, "shortest_edge": 4096}

    Alternatively, override the default values via engine startup parameters. For implementation details, refer to: vLLM / SGLang.

Citation

If you find our work helpful, feel free to give us a cite.

@techreport{qwen2026design,
    title       = {On the Design of {Qwen3.8-Next} Architecture: Evaluation, Efficiency, and Training Stability},
    author      = {{Qwen Team}},
    institution = {Alibaba Group},
    month       = {August},
    year        = {2026}
}

@misc{qwen3.8flashnext,
    title  = {{Qwen3.8-Flash-Next}: A New Architecture, Towards Ultimate Cost-Efficiency},
    author = {{Qwen Team}},
    month  = {August},
    year   = {2026},
    url    = {https://qwen.ai/blog?id=qwen3.8-flash-next}
}
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