# Claude 3 Sonnet vs Qwen3 8B

> Qwen3 8B is the stronger model overall, scoring 33.3 to 28.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-3-sonnet-vs-qwen3-8b
- Last updated: 2026-10-10
- Shared benchmarks: 4

## Summary

- They share 4 benchmarks with published results for both. Claude 3 Sonnet scores higher in 1 category and Qwen3 8B in 4 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in math, where Qwen3 8B leads 33.3 to 10.0.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.5% for Claude 3 Sonnet and 56.1% for Qwen3 8B.
- Qwen3 8B has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| Provider | Anthropic | Alibaba (Qwen) |
| Noometry Index | 28.8 | 33.3 |
| Rank | 311 | 237 |
| Context | — | 131K |
| Input $/M | — | $0.18 |
| Output $/M | — | $0.70 |
| Weights | Proprietary | Open |

## Coding

- Claude 3 Sonnet: 29.2 (#296)
- Qwen3 8B: 33.4 (#245)

| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| SciCode | — | 22.6% |
| WeirdML | 10.2% | — |
| BigCodeBench Instruct | 42.7% | — |
| LMArena Coding | 1223 | — |
| BigCodeBench Complete | 53.8% | — |
| HumanEval+ | 64% | — |
| MBPP+ | 69.3% | — |

## Agentic & Tool Use

- Claude 3 Sonnet: —
- Qwen3 8B: 29.9 (#71)

| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 42.6% |

## Reasoning

- Claude 3 Sonnet: 19.7 (#232)
- Qwen3 8B: 16.1 (#299)

| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| DTBench | 53.6% | 59.7% |
| Epoch Capabilities Index | 120.69 | 136.17 |
| CritPt | — | 0% |
| Chess Puzzles | — | 5% |
| LMArena Hard Prompts | 1197 | — |
| LMCA | — | 8.8% |
| WinoGrande | 75.1% | — |

## Math

- Claude 3 Sonnet: 10.0 (#305)
- Qwen3 8B: 33.3 (#176)

| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 2.5% | 56.1% |
| LMArena Math | 1213 | — |
| MATH Level 5 | 18.2% | — |

## Knowledge

- Claude 3 Sonnet: 21.1 (#271)
- Qwen3 8B: 36.1 (#164)

| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| GPQA Diamond | 40.6% | 56.8% |
| Vectara Hallucination Rate | — | 4.8% |
| LMArena Expert | 1173 | — |
| MMLU | 75.9% | — |

## Multimodal

- Claude 3 Sonnet: 24.7 (#120)
- Qwen3 8B: —

| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| LMArena Vision | 984 | — |

## Multilingual

- Claude 3 Sonnet: 38.0 (#229)
- Qwen3 8B: —

| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| LMArena Non-English | 1205 | — |
| LMArena Chinese | 1188 | — |
| LMArena French | 1228 | — |
| LMArena German | 1204 | — |
| LMArena Japanese | 1131 | — |
| LMArena Korean | 1128 | — |
| LMArena Russian | 1227 | — |
| LMArena Spanish | 1204 | — |

## Instruction Following

- Claude 3 Sonnet: 63.1 (#230)
- Qwen3 8B: —

| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| LMArena Instruction Following | 1200 | — |

## Long Context

- Claude 3 Sonnet: 36.7 (#223)
- Qwen3 8B: 37.8 (#205)

| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| Fiction.LiveBench | — | 62.1% |
| LMArena Longer Query | 1211 | — |

## Writing & Preference

- Claude 3 Sonnet: 42.3 (#233)
- Qwen3 8B: —

| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| LMArena Text | 1218 | — |
| LMArena Creative Writing | 1186 | — |
| LMArena Multi-Turn | 1227 | — |

## FAQ

### Is Claude 3 Sonnet better than Qwen3 8B?

Qwen3 8B is the stronger model overall, scoring 33.3 to 28.8 on the Noometry Index.

### Is Claude 3 Sonnet or Qwen3 8B better for coding?

Qwen3 8B scores higher on coding benchmarks: 33.4 versus 29.2 in the Noometry coding category.

### How many benchmarks do Claude 3 Sonnet and Qwen3 8B share?

4 benchmarks have published results for both models. Claude 3 Sonnet has 30 scored results on Noometry and Qwen3 8B has 11.