Model comparison
Mistral Small 3.1 vs o1-pro
Mistral Small 3.1 and o1-pro score almost the same on the Noometry Index (31.7 vs 31.5), so choose on price, context window or the category you care about most.
Last verified . 0 shared benchmarks.
Mistral AISummary
- The widest gap is in knowledge, where o1-pro leads 29.7 to 22.6.
- Mistral Small 3.1 is cheaper at $0.35 / $0.56 per million input/output tokens, against $150 / $600 for o1-pro.
- o1-pro accepts more context: 200K tokens versus 128K.
- Mistral Small 3.1 has downloadable open weights; the other is API-only.
Side by side
| Mistral Small 3.1 | o1-pro | |
|---|---|---|
| Provider | Mistral AI | OpenAI |
| Noometry Index | 31.7 | 31.5 |
| Released | 2025-03-17 | 2025-03-19 |
| Weights | Open | Proprietary |
| Context window | 128K | 200K |
| Max output | 102K | 100K |
| Input $ / M tokens | $0.35 | $150 |
| Output $ / M tokens | $0.56 | $600 |
| Results tracked | 28 | 3 |
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Category by category
Coding Not comparable
Mistral Small 3.1: 38.3 (#179), o1-pro: —
| Benchmark | Mistral Small 3.1 | o1-pro |
|---|---|---|
| LMArena Coding | 1309 | — |
Reasoning Too close to call
Mistral Small 3.1: 19.7 (#254), o1-pro: 20.4 (#239)
| Benchmark | Mistral Small 3.1 | o1-pro |
|---|---|---|
| ARC-AGI-1 | — | 23.3% |
| Chess Puzzles | 1% | — |
| EnigmaEval | — | 6.1% |
| LMArena Hard Prompts | 1278 | — |
| Epoch Capabilities Index | 127.48 | — |
Math Not comparable
Mistral Small 3.1: 14.7 (#301), o1-pro: —
| Benchmark | Mistral Small 3.1 | o1-pro |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 3.9% | — |
| Omni-MATH | 24.8% | — |
| LMArena Math | 1262 | — |
Knowledge o1-pro leads
Mistral Small 3.1: 22.6 (#271), o1-pro: 29.7 (#234)
| Benchmark | Mistral Small 3.1 | o1-pro |
|---|---|---|
| GPQA Diamond | 41.9% | — |
| Humanity's Last Exam | — | 8.1% |
| MMLU-Pro | 61% | — |
| GPQA (HELM) | 39.2% | — |
| LMArena Expert | 1257 | — |
Multimodal Not comparable
Mistral Small 3.1: 33.2 (#99), o1-pro: —
| Benchmark | Mistral Small 3.1 | o1-pro |
|---|---|---|
| LMArena Vision | 1136 | — |
Multilingual Not comparable
Mistral Small 3.1: 41.2 (#209), o1-pro: —
| Benchmark | Mistral Small 3.1 | o1-pro |
|---|---|---|
| LMArena Non-English | 1255 | — |
| LMArena Chinese | 1253 | — |
| LMArena French | 1273 | — |
| LMArena German | 1266 | — |
| LMArena Japanese | 1208 | — |
| LMArena Korean | 1206 | — |
| LMArena Russian | 1263 | — |
| LMArena Spanish | 1283 | — |
Instruction Following Not comparable
Mistral Small 3.1: 63.6 (#230), o1-pro: —
| Benchmark | Mistral Small 3.1 | o1-pro |
|---|---|---|
| IFEval | 75% | — |
| LMArena Instruction Following | 1264 | — |
Long Context Not comparable
Mistral Small 3.1: 39.5 (#178), o1-pro: —
| Benchmark | Mistral Small 3.1 | o1-pro |
|---|---|---|
| LMArena Longer Query | 1299 | — |
Writing & Preference Not comparable
Mistral Small 3.1: 37.0 (#259), o1-pro: —
| Benchmark | Mistral Small 3.1 | o1-pro |
|---|---|---|
| LMArena Text | 1277 | — |
| LMArena Creative Writing | 1253 | — |
| EQ-Bench Creative Writing | 761 | — |
| WildBench | 78.8% | — |
| LMArena Multi-Turn | 1270 | — |
Frequently asked questions
Is Mistral Small 3.1 better than o1-pro?
Mistral Small 3.1 and o1-pro score almost the same on the Noometry Index (31.7 vs 31.5), so choose on price, context window or the category you care about most.
Which is cheaper, Mistral Small 3.1 or o1-pro?
Mistral Small 3.1 is cheaper. It lists at $0.35 per million input tokens and $0.56 per million output tokens; o1-pro lists at $150 and $600.
Which has the bigger context window?
o1-pro does, with 200K tokens against 128K.
How many benchmarks do Mistral Small 3.1 and o1-pro share?
0 benchmarks have published results for both models. Mistral Small 3.1 has 28 scored results on Noometry and o1-pro has 3.