# Claude 3.5 Sonnet vs Qwen3 8B

> Claude 3.5 Sonnet and Qwen3 8B score almost the same on the Noometry Index (34.6 vs 33.7), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/claude-3-5-sonnet-vs-qwen3-8b
- Last updated: 2026-10-10
- Shared benchmarks: 4

## Summary

- They share 4 benchmarks with published results for both. Claude 3.5 Sonnet scores higher in 4 categories and Qwen3 8B in 2 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in math, where Qwen3 8B leads 34.9 to 19.2.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 8.5% for Claude 3.5 Sonnet and 56.1% for Qwen3 8B.
- Qwen3 8B has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 3.5 Sonnet | Qwen3 8B |
|---|---|---|
| Provider | Anthropic | Alibaba (Qwen) |
| Noometry Index | 34.6 | 33.7 |
| Rank | 231 | 238 |
| Context | — | 131K |
| Input $/M | — | $0.18 |
| Output $/M | — | $0.70 |
| Weights | Proprietary | Open |

## Coding

- Claude 3.5 Sonnet: 39.0 (#165)
- Qwen3 8B: 34.0 (#248)

| Benchmark | Claude 3.5 Sonnet | Qwen3 8B |
|---|---|---|
| Aider Polyglot | 51.6% | — |
| SciCode | — | 22.6% |
| GSO | 4.6% | — |
| WeirdML | 40% | — |
| BigCodeBench Instruct | 46.8% | — |
| LiveBench Coding | 67.1% | — |
| LMArena Coding | 1342 | — |
| BigCodeBench Complete | 58.6% | — |
| CadEval | 48% | — |
| HumanEval+ | 81.7% | — |
| MBPP+ | 74.3% | — |

## Agentic & Tool Use

- Claude 3.5 Sonnet: 32.3 (#67)
- Qwen3 8B: 30.2 (#78)

| Benchmark | Claude 3.5 Sonnet | Qwen3 8B |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 42.6% |
| TheAgentCompany | 24% | — |
| Cybench | 17.5% | — |
| BALROG | 32.6% | — |
| METR Time Horizons | 45.2% | — |

## Reasoning

- Claude 3.5 Sonnet: 23.1 (#183)
- Qwen3 8B: 16.6 (#303)

| Benchmark | Claude 3.5 Sonnet | Qwen3 8B |
|---|---|---|
| DTBench | 67.8% | 59.7% |
| Epoch Capabilities Index | 133.55 | 136.17 |
| SimpleBench | 41.4% | — |
| CritPt | — | 0% |
| Chess Puzzles | — | 5% |
| EnigmaEval | 0.9% | — |
| LiveBench Reasoning | 56.7% | — |
| LMArena Hard Prompts | 1305 | — |
| LiveBench Data Analysis | 55% | — |
| LMCA | — | 8.8% |
| ForecastBench | 60.7 | — |
| LiveBench | 59% | — |

## Math

- Claude 3.5 Sonnet: 19.2 (#288)
- Qwen3 8B: 34.9 (#191)

| Benchmark | Claude 3.5 Sonnet | Qwen3 8B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 8.5% | 56.1% |
| Omni-MATH | 27.6% | — |
| LiveBench Math | 52.3% | — |
| LMArena Math | 1307 | — |
| MATH Level 5 | 56.9% | — |
| FrontierMath (Feb 2025 set) | 2.1% | — |
| FrontierMath Tier 4 (v1) | 0% | — |

## Knowledge

- Claude 3.5 Sonnet: 28.6 (#245)
- Qwen3 8B: 36.1 (#173)

| Benchmark | Claude 3.5 Sonnet | Qwen3 8B |
|---|---|---|
| GPQA Diamond | 55.3% | 56.8% |
| Humanity's Last Exam | 4.1% | — |
| MMLU-Pro | 77.7% | — |
| Confabulations | 19.9% | — |
| Vectara Hallucination Rate | — | 4.8% |
| GPQA (HELM) | 56.5% | — |
| LMArena Expert | 1265 | — |
| MMLU | 87.3% | — |

## Multimodal

- Claude 3.5 Sonnet: 26.5 (#120)
- Qwen3 8B: —

| Benchmark | Claude 3.5 Sonnet | Qwen3 8B |
|---|---|---|
| LMArena Vision | 1125 | — |
| Video-MME | 60% | — |
| GeoBench | 62% | — |
| VPCT | 33% | — |

## Multilingual

- Claude 3.5 Sonnet: 43.2 (#185)
- Qwen3 8B: —

| Benchmark | Claude 3.5 Sonnet | Qwen3 8B |
|---|---|---|
| LMArena Non-English | 1283 | — |
| LMArena Chinese | 1272 | — |
| LMArena French | 1305 | — |
| LMArena German | 1297 | — |
| LMArena Japanese | 1234 | — |
| LMArena Korean | 1200 | — |
| LMArena Russian | 1306 | — |
| LMArena Spanish | 1290 | — |

## Instruction Following

- Claude 3.5 Sonnet: 68.8 (#182)
- Qwen3 8B: —

| Benchmark | Claude 3.5 Sonnet | Qwen3 8B |
|---|---|---|
| LiveBench Instruction Following | 69.3% | — |
| IFEval | 85.5% | — |
| LMArena Instruction Following | 1297 | — |

## Long Context

- Claude 3.5 Sonnet: 39.9 (#167)
- Qwen3 8B: 37.9 (#210)

| Benchmark | Claude 3.5 Sonnet | Qwen3 8B |
|---|---|---|
| Fiction.LiveBench | — | 62.1% |
| LMArena Longer Query | 1311 | — |

## Writing & Preference

- Claude 3.5 Sonnet: 52.9 (#164)
- Qwen3 8B: —

| Benchmark | Claude 3.5 Sonnet | Qwen3 8B |
|---|---|---|
| LMArena Text | 1298 | — |
| LMArena Creative Writing | 1292 | — |
| Short-Story Creative Writing | 80.3% | — |
| EQ-Bench Creative Writing | 1451 | — |
| WildBench | 79.2% | — |
| LMArena Multi-Turn | 1326 | — |
| LiveBench Language | 53.8% | — |

## FAQ

### Is Claude 3.5 Sonnet better than Qwen3 8B?

Claude 3.5 Sonnet and Qwen3 8B score almost the same on the Noometry Index (34.6 vs 33.7), so choose on price, context window or the category you care about most.

### Is Claude 3.5 Sonnet or Qwen3 8B better for coding?

Claude 3.5 Sonnet scores higher on coding benchmarks: 39.0 versus 34.0 in the Noometry coding category.

### How many benchmarks do Claude 3.5 Sonnet and Qwen3 8B share?

4 benchmarks have published results for both models. Claude 3.5 Sonnet has 60 scored results on Noometry and Qwen3 8B has 11.