# Claude 3 Sonnet vs Qwen2.5-Coder (1.5B)

> Claude 3 Sonnet has enough public results to be ranked (#319); Qwen2.5-Coder (1.5B) does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/claude-3-sonnet-vs-qwen2-5-coder
- Last updated: 2026-10-11
- Shared benchmarks: 3

## Summary

- They share 3 benchmarks with published results for both.
- Qwen2.5-Coder (1.5B) has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 3 Sonnet | Qwen2.5-Coder (1.5B) |
|---|---|---|
| Provider | Anthropic | Alibaba (Qwen) |
| Noometry Index | 29.0 | — |
| Rank | 319 | — |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Claude 3 Sonnet: 29.6 (#302)
- Qwen2.5-Coder (1.5B): —

| Benchmark | Claude 3 Sonnet | Qwen2.5-Coder (1.5B) |
|---|---|---|
| WeirdML | 10.2% | — |
| BigCodeBench Instruct | 42.7% | — |
| LMArena Coding | 1223 | — |
| BigCodeBench Complete | 53.8% | — |
| HumanEval+ | 64% | — |
| MBPP+ | 69.3% | — |

## Reasoning

- Claude 3 Sonnet: 20.5 (#237)
- Qwen2.5-Coder (1.5B): —

| Benchmark | Claude 3 Sonnet | Qwen2.5-Coder (1.5B) |
|---|---|---|
| Epoch Capabilities Index | 120.7 | 113.14 |
| WinoGrande | 75.1% | 72.9% |
| LMArena Hard Prompts | 1197 | — |
| DTBench | 53.6% | — |
| HellaSwag | — | 76.8% |

## Math

- Claude 3 Sonnet: 10.7 (#310)
- Qwen2.5-Coder (1.5B): —

| Benchmark | Claude 3 Sonnet | Qwen2.5-Coder (1.5B) |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 2.5% | — |
| LMArena Math | 1213 | — |
| MATH Level 5 | 18.2% | — |
| GSM8K | — | 86.7% |

## Knowledge

- Claude 3 Sonnet: 21.1 (#276)
- Qwen2.5-Coder (1.5B): —

| Benchmark | Claude 3 Sonnet | Qwen2.5-Coder (1.5B) |
|---|---|---|
| MMLU | 75.9% | 68% |
| GPQA Diamond | 40.6% | — |
| LMArena Expert | 1173 | — |
| ARC (AI2) Challenge | — | 60.9% |

## Multimodal

- Claude 3 Sonnet: 25.2 (#125)
- Qwen2.5-Coder (1.5B): —

| Benchmark | Claude 3 Sonnet | Qwen2.5-Coder (1.5B) |
|---|---|---|
| LMArena Vision | 984 | — |

## Multilingual

- Claude 3 Sonnet: 37.8 (#234)
- Qwen2.5-Coder (1.5B): —

| Benchmark | Claude 3 Sonnet | Qwen2.5-Coder (1.5B) |
|---|---|---|
| LMArena Non-English | 1205 | — |
| LMArena Chinese | 1189 | — |
| LMArena French | 1229 | — |
| LMArena German | 1204 | — |
| LMArena Japanese | 1131 | — |
| LMArena Korean | 1128 | — |
| LMArena Russian | 1227 | — |
| LMArena Spanish | 1204 | — |

## Instruction Following

- Claude 3 Sonnet: 62.8 (#235)
- Qwen2.5-Coder (1.5B): —

| Benchmark | Claude 3 Sonnet | Qwen2.5-Coder (1.5B) |
|---|---|---|
| LMArena Instruction Following | 1199 | — |

## Long Context

- Claude 3 Sonnet: 36.7 (#228)
- Qwen2.5-Coder (1.5B): —

| Benchmark | Claude 3 Sonnet | Qwen2.5-Coder (1.5B) |
|---|---|---|
| LMArena Longer Query | 1211 | — |

## Writing & Preference

- Claude 3 Sonnet: 42.1 (#238)
- Qwen2.5-Coder (1.5B): —

| Benchmark | Claude 3 Sonnet | Qwen2.5-Coder (1.5B) |
|---|---|---|
| LMArena Text | 1218 | — |
| LMArena Creative Writing | 1186 | — |
| LMArena Multi-Turn | 1227 | — |

## FAQ

### Is Claude 3 Sonnet better than Qwen2.5-Coder (1.5B)?

Claude 3 Sonnet has enough public results to be ranked (#319); Qwen2.5-Coder (1.5B) does not yet, so treat this comparison as directional.

### How many benchmarks do Claude 3 Sonnet and Qwen2.5-Coder (1.5B) share?

3 benchmarks have published results for both models. Claude 3 Sonnet has 30 scored results on Noometry and Qwen2.5-Coder (1.5B) has 6.