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Qwen3.5 4B

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

  • Reasoning
  • Vision
  • Tool Calling
  • Structured Output

Added Aug 16, 2026

Pricing

Auto routing · per 1M tokens
Input
$0.10
Output
$0.20
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Specifications

Context window
262.1K
Max output
32.8K
Parameters
4B

Benchmarks

Sourced from Artificial Analysis.

Intelligence Index

10.8

Better than 47% of models compared

Coding Index

20.3

Better than 23% of models compared

Agentic work

T²-Bench Telecom (legacy)

Legacy fallback · Conversational AI agents in dual-control scenarios

87.7%

Better than 82% of models compared

Document reasoning

AA-LCR v1.1

Long context reasoning with updated grading

34.7%

Better than 33% of models compared

Reasoning

HLE

Humanity's Last Exam

8.0%

Better than 45% of models compared

IFBench

Instruction-following benchmark

33.3%

Better than 22% of models compared

Coding

Terminal-Bench Hard (legacy)

Legacy fallback · Agentic coding and terminal use

11.4%

Better than 47% of models compared

Legacy benchmarks

GPQA Diamond (legacy)

Graduate-level scientific reasoning

71.2%

Better than 50% of models compared

AA-LCR (unversioned / legacy)

Long context reasoning evaluation

34.7%

Better than 32% of models compared

Last updated Oct 14, 2026

Artificial Analysis

Providers

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