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Alibaba

Qwen3.5 4B

  • Released
  • Open weights
  • Apache 2.0
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Intelligence Index

Reasoning setting

13.1
Estimated · Artificial Analysis v4.3.2
Context window
262.14K tok

Performance profile

ReasoningRank #58 of 107
77.1%
GPQA Diamond

Capabilities

Context window

Modalities

Measured setting

Reasoning trade-offs

Source (opens in a new tab)
Intelligence Index v4.3.2
ReasoningEstimated
Intelligence Index
13.1

Pricing & access

No API offering listed in our tracked sources.

Run locally

GGUF
Context
Estimated memory

~4.8 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.

16 GiB RAMwithout GPU offload

Memory budgetOne text chat
Weights
2.5 GiB
Context + state
0.3 GiB16-bit cache
App allowance
2 GiB
Disk space
~9 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/Qwen3.5-4B-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/Qwen3.5-4B-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 4B · Reasoning#92 of 126

  1. 1Claude Opus 5.5Max61.4%
  2. 2Claude Fable 5.1Max59.1%
  3. 3Gemini 4 ArgonHigh57.1%
  5. 89Hermes 4 - Llama-3.1 405BReasoning10.9%
  6. 90Nemotron 3.5 LightningReasoning10.6%
  7. 91Qwen3 Coder NextStandard10.1%
  8. 92Qwen3.5 4BReasoning9.9%
  9. 93Mistral Small 4Reasoning9.9%
  10. 94Granite 4.2 8BReasoning9.7%
  11. 95Nova 2.0 Pro PreviewMedium9.4%

Peers use their best measured result on this benchmark.