Model comparison
Claude Sonnet 5.5 vs Qwen3-4B
Claude Sonnet 5.5 is the stronger model overall, scoring 60.5 to 31.5 on the Noometry Index.
Last verified . 2 shared benchmarks.
Alibaba (Qwen)Summary
- They share 2 benchmarks with published results for both. Claude Sonnet 5.5 scores higher in 4 categories and Qwen3-4B in 0 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Sonnet 5.5 leads 88.7 to 28.5.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 100% for Claude Sonnet 5.5 and 52.2% for Qwen3-4B.
- Qwen3-4B has downloadable open weights; the other is API-only.
Side by side
| Claude Sonnet 5.5 | Qwen3-4B | |
|---|---|---|
| Provider | Anthropic | Alibaba (Qwen) |
| Noometry Index | 60.5 | 31.5 |
| Released | 2026-09-28 | 2025-04-29 |
| Weights | Proprietary | Open |
| Context window | 1M | — |
| Max output | 128K | — |
| Input $ / M tokens | $2 | — |
| Output $ / M tokens | $10 | — |
| Results tracked | 16 | 6 |
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Category by category
Coding Not comparable
Claude Sonnet 5.5: 65.5 (#6), Qwen3-4B: —
| Benchmark | Claude Sonnet 5.5 | Qwen3-4B |
|---|---|---|
| FrontierCode | 52.1% | — |
| CursorBench | 55.5% | — |
| LMArena WebDev | 1699 | — |
| FrontierSWE | 61.9% | — |
| SciCode | 61% | — |
| ALE-Bench | 1,819 | — |
Agentic & Tool Use Claude Sonnet 5.5 leads
Claude Sonnet 5.5: 44.9 (#14), Qwen3-4B: 27.3 (#94)
| Benchmark | Claude Sonnet 5.5 | Qwen3-4B |
|---|---|---|
| APEX-Agents | 75.5% | — |
| Berkeley Function Calling Leaderboard | — | 35.7% |
Reasoning Claude Sonnet 5.5 leads
Claude Sonnet 5.5: 52.4 (#29), Qwen3-4B: 18.5 (#264)
| Benchmark | Claude Sonnet 5.5 | Qwen3-4B |
|---|---|---|
| CritPt | 31.4% | — |
| Chess Puzzles | — | 4% |
| Mystery Game Puzzles | 65% | — |
Math Claude Sonnet 5.5 leads
Claude Sonnet 5.5: 88.7 (#4), Qwen3-4B: 28.5 (#228)
| Benchmark | Claude Sonnet 5.5 | Qwen3-4B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 100% | 52.2% |
| FrontierMath (Tiers 1-3) | 88.8% | — |
| FrontierMath Tier 4 | 80.5% | — |
| MathArena Final-Answer Competitions | — | 38.5% |
| ProofBench | 100% | — |
Knowledge Claude Sonnet 5.5 leads
Claude Sonnet 5.5: 66.0 (#11), Qwen3-4B: 33.0 (#198)
| Benchmark | Claude Sonnet 5.5 | Qwen3-4B |
|---|---|---|
| GPQA Diamond | 95.6% | 52.3% |
| SimpleQA Verified | 46.5% | — |
| Vectara Hallucination Rate | — | 5.7% |
Multimodal Not comparable
Claude Sonnet 5.5: 53.2 (#5), Qwen3-4B: —
| Benchmark | Claude Sonnet 5.5 | Qwen3-4B |
|---|---|---|
| Furniture Assembly | 75% | — |
Frequently asked questions
Is Claude Sonnet 5.5 better than Qwen3-4B?
Claude Sonnet 5.5 is the stronger model overall, scoring 60.5 to 31.5 on the Noometry Index.
How many benchmarks do Claude Sonnet 5.5 and Qwen3-4B share?
2 benchmarks have published results for both models. Claude Sonnet 5.5 has 16 scored results on Noometry and Qwen3-4B has 6.