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

Claude Opus 5 vs Qwen3.5 4B

15 SHARED BENCHMARKS

Across 15 shared benchmarks, Claude Opus 5 scores higher on 15 and Qwen3.5 4B on 0. The widest gap is gdpval, where Claude Opus 5 scores 61.8 against 8.3. Qwen3.5 4B is the cheaper of the two on tracked API pricing ($0.03 against $5.00 per million input tokens).

ANTHROPICVSALIBABA15 SHARED15–0 HEAD-TO-HEAD

BenchmarkClaude Opus 5MARGINQwen3.5 4B

AA Agentic Index56.236.3

AA Intelligence5120

AA-LCR8263

AA-Omniscience37.1-58.4

Artificial Analysis Coding Index7822.6

critpt29.10

gdpval61.88.3

GPQA Diamond93.777.1

HLE64.79.9

MMMU-Pro84.765.4

OmniScience Accuracy60.915.1

OmniScience Non-Hallucination40.513.4

scicode56.418.3

TauBench V3 - Banking44.76.8

Terminal-Bench 2.189.125.8

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 Opus 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 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 fieldGemma 4 26B A4B Kimi K3 Llama 3.1 Instruct 405B DeepSeek-V3.2 DeepSeek-V4-Flash Claude Opus 4.7 Gemini 2.5 Pro Gemini 1.5 Pro