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Qwen3.5 4B

qwen3.5-4b
BackTry Model
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Qwen3.5 4B

qwen3.5-4b
BackTry Model

Qwen3.5 4B is a compact open-weight multimodal model from Alibaba for reasoning, coding, visual understanding, tool use, and structured output.

Added Aug 16, 2026

Context Window

262.1K

Max Output

32.8K

Avg output tokens (7d)

75 tokens

11%

Input Price (Auto)

$0.10/1M

Output Price (Auto)

$0.20/1M

Cache Read (Auto)

$0.050/1M

Capabilities

Benchmarks

Performance metrics and benchmarks

Sourced from Artificial Analysis.

Intelligence Index

10.0

Better than 45% of models compared

Coding Index

20.3

Better than 23% of models compared

Reasoning

GPQA Diamond

Graduate-level scientific reasoning

71.2%

Better than 50% of models compared

HLE

Humanity's Last Exam

8.0%

Better than 49% of models compared

IFBench

Instruction-following benchmark

33.3%

Better than 22% of models compared

T²-Bench Telecom

Conversational AI agents in dual-control scenarios

87.7%

Better than 82% of models compared

AA-LCR

Long context reasoning evaluation

34.7%

Better than 36% of models compared

Coding

Terminal-Bench Hard

Agentic coding and terminal use

11.4%

Better than 47% of models compared

Last updated Sep 5, 2026

Artificial Analysis

Providers

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