Model comparison
Claude 3.5 Haiku vs Mistral Small 3.1
Mistral Small 3.1 is the stronger model overall, scoring 31.4 to 28.9 on the Noometry Index.
Last verified . 27 shared benchmarks.
Mistral AISummary
- They share 27 benchmarks with published results for both. Claude 3.5 Haiku scores higher in 1 category and Mistral Small 3.1 in 8 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in multimodal, where Mistral Small 3.1 leads 32.6 to 26.3.
- Mistral Small 3.1 has downloadable open weights; the other is API-only.
Side by side
| Claude 3.5 Haiku | Mistral Small 3.1 | |
|---|---|---|
| Provider | Anthropic | Mistral AI |
| Noometry Index | 28.9 | 31.4 |
| Released | 2024-10-22 | 2025-03-17 |
| Weights | Proprietary | Open |
| Context window | — | 128K |
| Max output | — | 102K |
| Input $ / M tokens | — | $0.35 |
| Output $ / M tokens | — | $0.56 |
| Results tracked | 49 | 28 |
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Category by category
Coding Mistral Small 3.1 leads
Claude 3.5 Haiku: 32.6 (#258), Mistral Small 3.1: 37.7 (#175)
| Benchmark | Claude 3.5 Haiku | Mistral Small 3.1 |
|---|---|---|
| LMArena Coding | 1287 | 1309 |
| Aider Polyglot | 28% | — |
| SciCode | 27.4% | — |
| WeirdML | 30.7% | — |
| BigCodeBench Instruct | 46.1% | — |
| LiveBench Coding | 51.4% | — |
| BigCodeBench Complete | 59% | — |
| CadEval | 32% | — |
Agentic & Tool Use Not comparable
Claude 3.5 Haiku: 27.7 (#90), Mistral Small 3.1: —
| Benchmark | Claude 3.5 Haiku | Mistral Small 3.1 |
|---|---|---|
| BALROG | 19.3% | — |
Reasoning Mistral Small 3.1 leads
Claude 3.5 Haiku: 17.1 (#286), Mistral Small 3.1: 18.9 (#249)
| Benchmark | Claude 3.5 Haiku | Mistral Small 3.1 |
|---|---|---|
| LMArena Hard Prompts | 1251 | 1278 |
| Epoch Capabilities Index | 127.15 | 127.48 |
| CritPt | 0% | — |
| Chess Puzzles | — | 1% |
| LiveBench Reasoning | 28.1% | — |
| DTBench | 56.7% | — |
| LiveBench Data Analysis | 48.5% | — |
| LiveBench | 43.5% | — |
Math Too close to call
Claude 3.5 Haiku: 13.7 (#294), Mistral Small 3.1: 13.7 (#295)
| Benchmark | Claude 3.5 Haiku | Mistral Small 3.1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 4.3% | 3.9% |
| Omni-MATH | 22.4% | 24.8% |
| LMArena Math | 1244 | 1261 |
| LiveBench Math | 35.5% | — |
| MATH Level 5 | 46.4% | — |
| FrontierMath (Feb 2025 set) | 0.3% | — |
Knowledge Mistral Small 3.1 leads
Claude 3.5 Haiku: 18.7 (#276), Mistral Small 3.1: 22.6 (#266)
| Benchmark | Claude 3.5 Haiku | Mistral Small 3.1 |
|---|---|---|
| GPQA Diamond | 38.1% | 41.9% |
| MMLU-Pro | 60.5% | 61% |
| GPQA (HELM) | 36.3% | 39.2% |
| LMArena Expert | 1208 | 1258 |
| Confabulations | 36.7% | — |
| MMLU | 74.3% | — |
Multimodal Mistral Small 3.1 leads
Claude 3.5 Haiku: 26.3 (#113), Mistral Small 3.1: 32.6 (#93)
| Benchmark | Claude 3.5 Haiku | Mistral Small 3.1 |
|---|---|---|
| LMArena Vision | 1092 | 1136 |
| GeoBench | 34% | — |
Multilingual Mistral Small 3.1 leads
Claude 3.5 Haiku: 40.2 (#213), Mistral Small 3.1: 41.4 (#204)
| Benchmark | Claude 3.5 Haiku | Mistral Small 3.1 |
|---|---|---|
| LMArena Non-English | 1238 | 1255 |
| LMArena Chinese | 1229 | 1254 |
| LMArena French | 1262 | 1270 |
| LMArena German | 1237 | 1266 |
| LMArena Japanese | 1175 | 1210 |
| LMArena Korean | 1172 | 1206 |
| LMArena Russian | 1253 | 1263 |
| LMArena Spanish | 1261 | 1283 |
Instruction Following Too close to call
Claude 3.5 Haiku: 63.1 (#229), Mistral Small 3.1: 63.8 (#225)
| Benchmark | Claude 3.5 Haiku | Mistral Small 3.1 |
|---|---|---|
| IFEval | 79.2% | 75% |
| LMArena Instruction Following | 1241 | 1264 |
| LiveBench Instruction Following | 61.9% | — |
Long Context Mistral Small 3.1 leads
Claude 3.5 Haiku: 38.3 (#195), Mistral Small 3.1: 39.5 (#172)
| Benchmark | Claude 3.5 Haiku | Mistral Small 3.1 |
|---|---|---|
| LMArena Longer Query | 1261 | 1300 |
Writing & Preference Claude 3.5 Haiku leads
Claude 3.5 Haiku: 42.9 (#228), Mistral Small 3.1: 37.2 (#254)
| Benchmark | Claude 3.5 Haiku | Mistral Small 3.1 |
|---|---|---|
| LMArena Text | 1255 | 1278 |
| LMArena Creative Writing | 1233 | 1253 |
| EQ-Bench Creative Writing | 1146 | 761 |
| WildBench | 76% | 78.8% |
| LMArena Multi-Turn | 1265 | 1270 |
| Short-Story Creative Writing | 73.5% | — |
| LiveBench Language | 35.4% | — |
Frequently asked questions
Is Claude 3.5 Haiku better than Mistral Small 3.1?
Mistral Small 3.1 is the stronger model overall, scoring 31.4 to 28.9 on the Noometry Index.
Is Claude 3.5 Haiku or Mistral Small 3.1 better for coding?
Mistral Small 3.1 scores higher on coding benchmarks: 37.7 versus 32.6 in the Noometry coding category.
How many benchmarks do Claude 3.5 Haiku and Mistral Small 3.1 share?
27 benchmarks have published results for both models. Claude 3.5 Haiku has 49 scored results on Noometry and Mistral Small 3.1 has 28.