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SOURCE_REPORTED / OFFICIAL MODEL CARD

Qwen3.8-Flash-Next: official model and deployment card

Publisher model card with serving links and distinct thinking-mode settings. Use its exact artifact identity alongside the selected engine recipe.

Read the original source Publisher / project JSON ↗Markdown ↗
Source checked 2026-10-17 · Not independently reproduced by Run AI Here.

THE SOURCE IN CONTEXT

Publisher model card with serving links and distinct thinking-mode settings. Use its exact artifact identity alongside the selected engine recipe.

How is the model’s size counted?

The card describes a 125B language-model component with 6B active parameters, plus 51B of n-gram embeddings and a 4B multi-token prediction component. The vLLM recipe uses a 176B summary label. Those counts cover different components; neither label should be substituted for the size of a downloaded artifact. The card lists 48 layers and a repeated hybrid of Gated DeltaNet and sparse attention.

Source: Qwen · pinned document

Is the open checkpoint natively a million-token model?

The published native window is 262,144 tokens. Reaching 1,000,000 tokens requires the documented extension configuration; the hosted Qwen3.8-Flash product and the open Flash-Next checkpoint also have different production features. Record the actual RoPE settings and total input-plus-output budget before evaluating long tasks.

Source: Qwen · pinned document

How do thinking and non-thinking settings differ?

Thinking mode uses temperature 1.0, top_p 0.95 and presence_penalty 0.0; non-thinking uses 0.7, 0.80 and 1.5 respectively. Both recommendations retain top_k 20, min_p 0.0 and repetition_penalty 1.0. The card also preserves historical thinking blocks by default. Changing that conversation policy changes both the prompt and cache behavior.

Source: Qwen · pinned document

How should its benchmark table be read?

The coding evaluations specify harnesses, sampling and context. In particular, DeepSWE reports the better result from Claude Code and mini-SWE-agent rather than one universally shared harness. For vision tables, pass@3 and the mean over three attempts are different statistics. Keep the footnote for the selected task instead of treating every published cell as directly comparable.

Source: Qwen · pinned document

What does the source specify?

These declarations belong to the cited document. A planning minimum, model limit and measured runtime allocation are different quantities.

Configuration facts from the pinned source
LM component / active / n-gram / MTP125B / 6B / 51B / 4B
Layers48
Native / extended context262144 / up to 1000000 tokens
Thinking samplingtemperature 1.0; top_p 0.95; top_k 20
Non-thinking samplingtemperature 0.7; top_p 0.80; presence_penalty 1.5

AI-assisted source reading and original editorial synthesis; no independent model execution.

Key reading notes

Source identity and full condition receipt

Source identity

Attribution and exact source identity
Original publisherQwen
Reference typeOfficial model card
Model IDQwen/Qwen3.8-Flash-Next
Default recipe artifactQwen/Qwen3.8-Flash-Next
Runtime topics["vLLM", "SGLang", "TokenSpeed"]
Source revisionde4b8e4d43b917e7706784d8bb445c9af86a3540
Source commit date — not experiment date2026-08-27T05:03:36.000Z
Source checked2026-10-17
Declared licenseqwen-community-1.0

Reported conditions

Unknown fields remain unspecified; context limits and measured input lengths are different
systemNot specified
node_countNot specified
parallelismNot specified
kv_dtypeNot specified
context_limit_tokensNot specified
experiment_dateNot specified
model_revisionde4b8e4d43b917e7706784d8bb445c9af86a3540
weight_hashNot specified
runtime_execution_revisionNot specified
input_tokensNot specified
output_tokensNot specified
concurrencyNot specified
cache_stateNot specified
quantizationNot specified
speculative_decodingNot specified
temperatureNot specified
top_pNot specified

Limits

The complete original tables and raw evidence remain in the linked reports. Selected attributed figures retain their own conditions. Results from different models, weights, runtimes, workloads or cohorts must be read separately.

License scope

Publisher model-card declaration; inspect the linked LICENSE and artifact-specific terms.

This index publishes original explanations, limited attributed factual selections and source pointers. It does not distribute model weights or source repositories. Third-party material retains its own terms.

Related references — check the checkpoint