# Claude Sonnet 5.5 vs Qwen3-4B

> Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 31.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-sonnet-5-5-vs-qwen3-4b
- Last updated: 2026-10-10
- Shared benchmarks: 2

## 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 87.9 to 29.7.
- 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.

## Snapshot

| | Claude Sonnet 5.5 | Qwen3-4B |
|---|---|---|
| Provider | Anthropic | Alibaba (Qwen) |
| Noometry Index | 61.9 | 31.9 |
| Rank | 10 | 264 |
| Context | 1M | — |
| Input $/M | $2 | — |
| Output $/M | $10 | — |
| Weights | Proprietary | Open |

## Coding

- Claude Sonnet 5.5: 67.3 (#6)
- Qwen3-4B: —

| Benchmark | Claude Sonnet 5.5 | Qwen3-4B |
|---|---|---|
| FrontierCode | 52.1% | — |
| CursorBench | 55.5% | — |
| LMArena WebDev | 1774 | — |
| FrontierSWE | 61.9% | — |
| SciCode | 61% | — |
| LMArena Coding | 1513 | — |
| ALE-Bench | 1,819 | — |

## Agentic & Tool Use

- Claude Sonnet 5.5: 45.0 (#16)
- Qwen3-4B: 27.6 (#100)

| Benchmark | Claude Sonnet 5.5 | Qwen3-4B |
|---|---|---|
| APEX-Agents | 75.5% | — |
| Berkeley Function Calling Leaderboard | — | 35.7% |

## Reasoning

- Claude Sonnet 5.5: 54.0 (#28)
- Qwen3-4B: 19.2 (#268)

| Benchmark | Claude Sonnet 5.5 | Qwen3-4B |
|---|---|---|
| NYT Connections (extended) | 80.5% | — |
| CritPt | 31.4% | — |
| Chess Puzzles | — | 4% |
| LMArena Hard Prompts | 1495 | — |
| Mystery Game Puzzles | 65% | — |
| Epoch Capabilities Index | 165.03 | — |

## Math

- Claude Sonnet 5.5: 87.9 (#6)
- Qwen3-4B: 29.7 (#240)

| 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% | — |
| LMArena Math | 1510 | — |
| FrontierMath Erdős | 2.9% | — |

## Knowledge

- Claude Sonnet 5.5: 66.0 (#12)
- Qwen3-4B: 33.0 (#208)

| Benchmark | Claude Sonnet 5.5 | Qwen3-4B |
|---|---|---|
| GPQA Diamond | 95.6% | 52.3% |
| SimpleQA Verified | 46.5% | — |
| Vectara Hallucination Rate | — | 5.7% |
| LMArena Expert | 1540 | — |

## Multimodal

- Claude Sonnet 5.5: 51.5 (#6)
- Qwen3-4B: —

| Benchmark | Claude Sonnet 5.5 | Qwen3-4B |
|---|---|---|
| LMArena Vision | 1289 | — |
| Furniture Assembly | 75% | — |

## Multilingual

- Claude Sonnet 5.5: 55.3 (#30)
- Qwen3-4B: —

| Benchmark | Claude Sonnet 5.5 | Qwen3-4B |
|---|---|---|
| LMArena Non-English | 1452 | — |
| LMArena Chinese | 1522 | — |
| LMArena Russian | 1451 | — |

## Instruction Following

- Claude Sonnet 5.5: 78.3 (#11)
- Qwen3-4B: —

| Benchmark | Claude Sonnet 5.5 | Qwen3-4B |
|---|---|---|
| LMArena Instruction Following | 1495 | — |

## Long Context

- Claude Sonnet 5.5: 45.9 (#28)
- Qwen3-4B: —

| Benchmark | Claude Sonnet 5.5 | Qwen3-4B |
|---|---|---|
| LMArena Longer Query | 1498 | — |

## Writing & Preference

- Claude Sonnet 5.5: 66.0 (#40)
- Qwen3-4B: —

| Benchmark | Claude Sonnet 5.5 | Qwen3-4B |
|---|---|---|
| LMArena Text | 1471 | — |
| LMArena Creative Writing | 1465 | — |
| LMArena Multi-Turn | 1474 | — |

## FAQ

### Is Claude Sonnet 5.5 better than Qwen3-4B?

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 31.9 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 32 scored results on Noometry and Qwen3-4B has 6.