Model comparison
Claude 3.5 Sonnet vs Magistral Small
Claude 3.5 Sonnet is the stronger model overall, scoring 34.6 to 30.2 on the Noometry Index.
Last verified . 4 shared benchmarks.
Mistral AISummary
- They share 4 benchmarks with published results for both. Claude 3.5 Sonnet scores higher in 2 categories and Magistral Small in 2 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Claude 3.5 Sonnet leads 23.1 to 6.8.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 8.5% for Claude 3.5 Sonnet and 30% for Magistral Small.
- Magistral Small has downloadable open weights; the other is API-only.
Side by side
| Claude 3.5 Sonnet | Magistral Small | |
|---|---|---|
| Provider | Anthropic | Mistral AI |
| Noometry Index | 34.6 | 30.2 |
| Released | 2024-06-20 | 2025-06-10 |
| Weights | Proprietary | Open |
| Context window | — | 128K |
| Max output | — | 40K |
| Input $ / M tokens | — | $0.50 |
| Output $ / M tokens | — | $1.50 |
| Results tracked | 60 | 10 |
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Category by category
Coding Too close to call
Claude 3.5 Sonnet: 39.0 (#165), Magistral Small: 38.4 (#176)
| Benchmark | Claude 3.5 Sonnet | Magistral Small |
|---|---|---|
| Aider Polyglot | 51.6% | — |
| SciCode | — | 35.2% |
| 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 Not comparable
Claude 3.5 Sonnet: 32.3 (#67), Magistral Small: —
| Benchmark | Claude 3.5 Sonnet | Magistral Small |
|---|---|---|
| TheAgentCompany | 24% | — |
| Cybench | 17.5% | — |
| BALROG | 32.6% | — |
| METR Time Horizons | 45.2% | — |
Reasoning Claude 3.5 Sonnet leads
Claude 3.5 Sonnet: 23.1 (#183), Magistral Small: 6.8 (#350)
| Benchmark | Claude 3.5 Sonnet | Magistral Small |
|---|---|---|
| DTBench | 67.8% | 61.3% |
| Epoch Capabilities Index | 133.55 | 133.19 |
| ARC-AGI-2 | — | 0% |
| SimpleBench | 41.4% | — |
| Kagi LLM Benchmark | — | 6.3% |
| ARC-AGI-1 | — | 5% |
| CritPt | — | 0.3% |
| Chess Puzzles | — | 3% |
| EnigmaEval | 0.9% | — |
| LiveBench Reasoning | 56.7% | — |
| LMArena Hard Prompts | 1305 | — |
| LiveBench Data Analysis | 55% | — |
| ForecastBench | 60.7 | — |
| LiveBench | 59% | — |
Math Magistral Small leads
Claude 3.5 Sonnet: 19.2 (#288), Magistral Small: 26.2 (#261)
| Benchmark | Claude 3.5 Sonnet | Magistral Small |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 8.5% | 30% |
| 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 Magistral Small leads
Claude 3.5 Sonnet: 28.6 (#245), Magistral Small: 30.9 (#223)
| Benchmark | Claude 3.5 Sonnet | Magistral Small |
|---|---|---|
| GPQA Diamond | 55.3% | 56.1% |
| Humanity's Last Exam | 4.1% | — |
| MMLU-Pro | 77.7% | — |
| Confabulations | 19.9% | — |
| GPQA (HELM) | 56.5% | — |
| LMArena Expert | 1265 | — |
| MMLU | 87.3% | — |
Multimodal Not comparable
Claude 3.5 Sonnet: 26.5 (#120), Magistral Small: —
| Benchmark | Claude 3.5 Sonnet | Magistral Small |
|---|---|---|
| LMArena Vision | 1125 | — |
| Video-MME | 60% | — |
| GeoBench | 62% | — |
| VPCT | 33% | — |
Multilingual Not comparable
Claude 3.5 Sonnet: 43.2 (#185), Magistral Small: —
| Benchmark | Claude 3.5 Sonnet | Magistral Small |
|---|---|---|
| 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 Not comparable
Claude 3.5 Sonnet: 68.8 (#182), Magistral Small: —
| Benchmark | Claude 3.5 Sonnet | Magistral Small |
|---|---|---|
| LiveBench Instruction Following | 69.3% | — |
| IFEval | 85.5% | — |
| LMArena Instruction Following | 1297 | — |
Long Context Not comparable
Claude 3.5 Sonnet: 39.9 (#167), Magistral Small: —
| Benchmark | Claude 3.5 Sonnet | Magistral Small |
|---|---|---|
| LMArena Longer Query | 1311 | — |
Writing & Preference Not comparable
Claude 3.5 Sonnet: 52.9 (#164), Magistral Small: —
| Benchmark | Claude 3.5 Sonnet | Magistral Small |
|---|---|---|
| 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% | — |
Frequently asked questions
Is Claude 3.5 Sonnet better than Magistral Small?
Claude 3.5 Sonnet is the stronger model overall, scoring 34.6 to 30.2 on the Noometry Index.
Is Claude 3.5 Sonnet or Magistral Small better for coding?
They score almost the same on coding (39.0 vs 38.4); test both on your own repository before choosing.
How many benchmarks do Claude 3.5 Sonnet and Magistral Small share?
4 benchmarks have published results for both models. Claude 3.5 Sonnet has 60 scored results on Noometry and Magistral Small has 10.