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Alibaba

Qwen3.5 397B A17B

  • Released
  • Open weights
  • Apache 2.0
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Intelligence Index

Reasoning setting

18.4#54 of 83measured models
Measured · Artificial Analysis v4.3.2
API price from
$0.39 in / $2.34 out / 1M tokOpenRouter · Alibaba
Context window
262.14K tok

Performance profile

ReasoningRank #24 of 107
89.3%
GPQA Diamond
CodingRank #50 of 94
44.8%
SciCode
Cost efficiencyRank #45 of 67
38.8pts / $
Intelligence ÷ eval cost

Capabilities

Context window

Modalities

Measured setting

Integration

Reasoning trade-offs

Source (opens in a new tab)
Intelligence Index v4.3.2
Qwen3.5 397B A17B
Cost per task (USD) · log scale
Qwen3.5 397B A17BReasoning
Intelligence Index
18.4
Cost / task
$0.4746
Evaluation time
5.3m

Pricing & access

API route
OpenRouter · AlibabaAPI
Tier & contextStandard

USD per 1M tokens

Input
$0.39
Output
$2.34

Run locally

GGUF
Context
Estimated memory

~246.9 GiB

RAM + VRAM

Estimate assumptions

One text chat at the selected context, with a 16-bit cache and app allowance. Operating system and image processing are extra; optimized caches can use less.

256 GiB RAMwithout GPU offload

Memory budgetOne text chat
Weights
224.1 GiB
Context + state
0.4 GiB16-bit cache
App allowance
22.4 GiB
Download
240.6 GB7 files · keep together+0.9 GB for images (opens in a new tab)
Disk space
~271 GBIncludes image file
Available software
Ollama (opens in a new tab)LM Studio (opens in a new tab)Jan (opens in a new tab)KoboldCpp (opens in a new tab)llama.cpp (opens in a new tab)
Get GGUF (opens in a new tab)
Set up in Ollama · Q4_K_M · 8K context

Save the following as Modelfile. The context matches the estimate above.

FROM hf.co/lmstudio-community/Qwen3.5-397B-A17B-GGUF:Q4_K_M
PARAMETER num_ctx 8192

Then run these commands in your terminal:

ollama create llmcurrent-local -f Modelfile
ollama run llmcurrent-local

Ollama import instructions (opens in a new tab) · For LM Studio or Jan, open the app’s model search, enter lmstudio-community/Qwen3.5-397B-A17B-GGUF, choose Q4_K_M, and set context to 8,192 tokens in the app’s model settings. Software links above open each app’s setup guide.

Images need extra memoryvLLM setup (opens in a new tab)

Benchmarks

Full leaderboardSource (opens in a new tab)

Humanity’s Last Exam

Frontier reasoning

Qwen3.5 397B A17B · Reasoning#52 of 126

  1. 1Claude Opus 5.5Max61.4%
  2. 2Claude Fable 5.1Max59.1%
  3. 3Gemini 4 ArgonHigh57.1%
  5. 49Nemotron 3.5 Super VLReasoning30.7%
  6. 50A.X-K2Reasoning29.6%
  7. 51Solar Pro 4Reasoning29.2%
  8. 52Qwen3.5 397B A17BReasoning29.0%
  9. 53Solar Open2 250BReasoning28.5%
  10. 54Nemotron 3 Ultra 550B A55BReasoning28.4%
  11. 55Qwen3.5 122B A10BReasoning25.2%

Peers use their best measured result on this benchmark.

Alternatives

Each model at its highest-scoring measured setting · Intelligence Index v4.3.2 and its evaluation cost per task.