Which is better, Claude Sonnet 4.6 or Qwen3.5 4B?

Claude Sonnet 4.6 vs Qwen3.5 4B

21 SHARED BENCHMARKS

Across 21 shared benchmarks, Claude Sonnet 4.6 scores higher on 20 and Qwen3.5 4B on 1. The widest gap is gdpval, where Claude Sonnet 4.6 scores 54.8 against 8.3. Qwen3.5 4B is the cheaper of the two on tracked API pricing ($0.03 against $3.00 per million input tokens).

ANTHROPICVSALIBABA21 SHARED20–1 HEAD-TO-HEAD

BenchmarkClaude Sonnet 4.6MARGINQwen3.5 4B

AA Agentic Index61.636.3

AA Intelligence30.520

AA-LCR8063

AA-Omniscience12.2-58.4

Artificial Analysis Coding Index6322.6

critpt3.10

gdpval54.88.3

GPQA Diamond89.977.1

HLE499.9

IFBench56.659.2

mmmlu89.376.1

MMMU-Pro75.665.4

OmniScience Accuracy40.915.1

OmniScience Non-Hallucination51.613.4

scicode50.118.3

TauBench V3 - Banking34.46.8

Terminal-Bench 2.171.225.8

Terminal-Bench Hard59.118.2

τ²-Bench (Retail)91.771.9

τ²-Bench Telecom (AA run)97.992.1

τ³-Bench30.58.2

Best tracked score per model per benchmark (default configuration; source-attributed). ↓ marks lower-is-better metrics. Open either model for its full surface, provenance and pricing. Quoted rates are the price-setter row we currently track for each model — its direct or vendor-official listing where one exists (anthropic-official, direct), otherwise the lowest tracked offer.

Compare Claude Sonnet 4.6 withALL PAIRINGS →

AnthropicClaude Opus 4.8 Claude Opus 4.6 Claude Sonnet 4.5 Claude 3.5 Sonnet Claude Fable 5 Claude Opus 4.5

Across the fieldGemini 3.6 Flash Nemotron 3 Super 120B A12B GPT-5.5 GPT-4o GPT-5.6 Sol Gemini 3.1 Pro GPT-5.4 GPT-5.2

Compare Qwen3.5 4B withALL PAIRINGS →

AlibabaQwen3.5 35B A3B Qwen3 VL 4B (Reasoning)Qwen3.5 397B A17B Qwen2.5 Instruct 72B Qwen3.5 27B Qwen3.6 Plus

Across the fieldo1 Gemma 4 31B Kimi K2 Instruct Gemma 4 E2B GPT-4o mini GPT-6 Astra Qwen3.6 35B A3B Gemini 3.5 Flash