Model comparison
Claude 3 Sonnet vs Qwen3 8B
Qwen3 8B is the stronger model overall, scoring 33.7 to 29.0 on the Noometry Index.
Last verified . 4 shared benchmarks.
Alibaba (Qwen)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 34.9 to 10.7.
- 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.
Side by side
| Claude 3 Sonnet | Qwen3 8B | |
|---|---|---|
| Provider | Anthropic | Alibaba (Qwen) |
| Noometry Index | 29.0 | 33.7 |
| Released | 2024-02-29 | 2025-04 |
| Weights | Proprietary | Open |
| Context window | — | 131K |
| Max output | — | 8K |
| Input $ / M tokens | — | $0.18 |
| Output $ / M tokens | — | $0.70 |
| Results tracked | 30 | 11 |
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Category by category
Coding Qwen3 8B leads
Claude 3 Sonnet: 29.6 (#302), Qwen3 8B: 34.0 (#248)
| 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 Not comparable
Claude 3 Sonnet: —, Qwen3 8B: 30.2 (#78)
| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 42.6% |
Reasoning Claude 3 Sonnet leads
Claude 3 Sonnet: 20.5 (#237), Qwen3 8B: 16.6 (#303)
| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| DTBench | 53.6% | 59.7% |
| Epoch Capabilities Index | 120.7 | 136.17 |
| CritPt | — | 0% |
| Chess Puzzles | — | 5% |
| LMArena Hard Prompts | 1197 | — |
| LMCA | — | 8.8% |
| WinoGrande | 75.1% | — |
Math Qwen3 8B leads
Claude 3 Sonnet: 10.7 (#310), Qwen3 8B: 34.9 (#191)
| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 2.5% | 56.1% |
| LMArena Math | 1213 | — |
| MATH Level 5 | 18.2% | — |
Knowledge Qwen3 8B leads
Claude 3 Sonnet: 21.1 (#276), Qwen3 8B: 36.1 (#173)
| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| GPQA Diamond | 40.6% | 56.8% |
| Vectara Hallucination Rate | — | 4.8% |
| LMArena Expert | 1173 | — |
| MMLU | 75.9% | — |
Multimodal Not comparable
Claude 3 Sonnet: 25.2 (#125), Qwen3 8B: —
| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| LMArena Vision | 984 | — |
Multilingual Not comparable
Claude 3 Sonnet: 37.8 (#234), Qwen3 8B: —
| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| 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 Not comparable
Claude 3 Sonnet: 62.8 (#235), Qwen3 8B: —
| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| LMArena Instruction Following | 1199 | — |
Long Context Qwen3 8B leads
Claude 3 Sonnet: 36.7 (#228), Qwen3 8B: 37.9 (#210)
| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| Fiction.LiveBench | — | 62.1% |
| LMArena Longer Query | 1211 | — |
Writing & Preference Not comparable
Claude 3 Sonnet: 42.1 (#238), Qwen3 8B: —
| Benchmark | Claude 3 Sonnet | Qwen3 8B |
|---|---|---|
| LMArena Text | 1218 | — |
| LMArena Creative Writing | 1186 | — |
| LMArena Multi-Turn | 1227 | — |
Frequently asked questions
Is Claude 3 Sonnet better than Qwen3 8B?
Qwen3 8B is the stronger model overall, scoring 33.7 to 29.0 on the Noometry Index.
Is Claude 3 Sonnet or Qwen3 8B better for coding?
Qwen3 8B scores higher on coding benchmarks: 34.0 versus 29.6 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.