Which is better, Claude Sonnet 5 or Qwen3.5 2B?

Claude Sonnet 5 vs Qwen3.5 2B

16 SHARED BENCHMARKS

Across 16 shared benchmarks, Claude Sonnet 5 scores higher on 16 and Qwen3.5 2B on 0. The widest gap is AA Intelligence, where Claude Sonnet 5 scores 53 against 6.9.

ANTHROPICVSALIBABA16 SHARED16–0 HEAD-TO-HEAD

BenchmarkClaude Sonnet 5MARGINQwen3.5 2B

AA Agentic Index44.30.8

AA Intelligence536.9

AA-LCR8225.6

AA-Omniscience16.4-60.2

Artificial Analysis Coding Index71.52.9

critpt16.90

gdpval500

GPQA Diamond91.151.6

HLE57.45

MMMU-Pro77.343

OmniScience Accuracy408.1

OmniScience Non-Hallucination60.625.8

scicode54.37.2

TauBench V3 - Banking37.32.5

Terminal-Bench 2.180.53

τ³-Bench28.26.2

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.

Compare Claude Sonnet 5 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 fieldQwen3.6 27B Qwen3.7 Max Qwen3.8 Max Preview Qwen3.7 Plus Preview Claude Opus 4 Qwen3.5 4B Gemini 3.6 Flash Nemotron 3 Super 120B A12B

Compare Qwen3.5 2B 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 fieldMuse Spark 1.1 GLM-5.1 GLM-5.2 o4-mini Claude Sonnet 4.6 o1 Gemma 4 31B Kimi K2 Instruct