Qwen3.5 4B is a large language model from Qwen, released on March 2, 2026. It accepts text, image and video input.

When was Qwen3.5 4B released?

Qwen released Qwen3.5 4B on March 2, 2026.

What is Qwen3.5 4B's context window?

Qwen3.5 4B has a 262K-token context window.

How does Qwen3.5 4B score on benchmarks?

Qwen3.5 4B has 16 cited benchmark scores, including OTIS Mock AIME 2024-2025 (Epoch AI run) 55.8%, BFCL-V4 50.3% and GPQA Diamond 76.2%. Each score links to its source.

Qwen3.5 4B

Qwen·Pending·Released 2026-03-02textvisionvideo

Context262.144k

Max output-

Input / 1M-

Output / 1M-

Cached in-

Benchmarks16

Benchmarks

Cited public sources · rank is exact-benchmark, apples-to-apples

OTIS Mock AIME 2024-2025 (Epoch AI run)

#93/10355.8% ↗

BFCL-V4

#2/250.3% ↗

GPQA Diamond

#57/8376.2% ↗

HMMT Feb 25

#2/274% ↗

IFBench

#9/1259.2% ↗

IFEval

#8/2489.8% ↗

LiveCodeBench v6

#11/1355.8% ↗

LongBench v2

#3/350% ↗

MMLU-Pro

#34/4979.1% ↗

MMLU-Redux

#11/1388.8% ↗

MMMLU

#9/976.1% ↗

MMMU

#6/977.6% ↗

MMMU-Pro

#10/1266.3% ↗

OSWorld-Verified

#20/2035.6% ↗

SuperGPQA

#15/1752.9% ↗

TAU2-Bench

#1/279.9% ↗

Compare

vs Gemini 4 Argon vs GPT-6.1 Sol vs Claude Sonnet 5.5 vs Muse Spark 1.3 vs GPT-6 Sol vs GPT-6 Luna vs Claude Opus 5.5 vs GPT-6 Astra

Qwen3.5 4B FAQ

What is Qwen3.5 4B?: Qwen3.5 4B is a large language model from Qwen, released on March 2, 2026. It accepts text, image and video input.
When was Qwen3.5 4B released?: Qwen released Qwen3.5 4B on March 2, 2026.
What is Qwen3.5 4B's context window?: Qwen3.5 4B has a 262K-token context window.
How does Qwen3.5 4B score on benchmarks?: Qwen3.5 4B has 16 cited benchmark scores, including OTIS Mock AIME 2024-2025 (Epoch AI run) 55.8%, BFCL-V4 50.3% and GPQA Diamond 76.2%. Each score links to its source.

Access Qwen3.5 4B and every other model through one endpoint with automatic failover: Respan gateway.

Benchmarks

Compare

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Qwen3.5 4B FAQ