# Mistral Small 3 vs o1-mini

> o1-mini is the stronger model overall, scoring 33.7 to 30.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mistral-small-3-vs-o1-mini
- Last updated: 2026-10-10
- Shared benchmarks: 20

## Summary

- They share 20 benchmarks with published results for both. Mistral Small 3 scores higher in 2 categories and o1-mini in 6 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in math, where o1-mini leads 33.7 to 15.3.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 6.7% for Mistral Small 3 and 46.9% for o1-mini.
- Mistral Small 3 has downloadable open weights; the other is API-only.

## Snapshot

| | Mistral Small 3 | o1-mini |
|---|---|---|
| Provider | Mistral AI | OpenAI |
| Noometry Index | 30.9 | 33.7 |
| Rank | 268 | 230 |
| Context | 33K | — |
| Input $/M | $0.05 | — |
| Output $/M | $0.08 | — |
| Weights | Open | Proprietary |

## Coding

- Mistral Small 3: 36.0 (#203)
- o1-mini: 35.1 (#218)

| Benchmark | Mistral Small 3 | o1-mini |
|---|---|---|
| LMArena Coding | 1246 | 1362 |
| Aider Polyglot | — | 32.9% |
| WeirdML | — | 36.3% |
| BigCodeBench Instruct | 45.3% | — |
| LiveBench Coding | — | 48% |
| BigCodeBench Complete | 50.4% | — |
| HumanEval+ | — | 89% |
| MBPP+ | — | 78.8% |

## Agentic & Tool Use

- Mistral Small 3: —
- o1-mini: 24.3 (#112)

| Benchmark | Mistral Small 3 | o1-mini |
|---|---|---|
| Cybench | — | 10% |

## Reasoning

- Mistral Small 3: 18.2 (#269)
- o1-mini: 8.9 (#340)

| Benchmark | Mistral Small 3 | o1-mini |
|---|---|---|
| LMArena Hard Prompts | 1233 | 1333 |
| Epoch Capabilities Index | 127.06 | 135.82 |
| ARC-AGI-2 | — | 0.8% |
| SimpleBench | — | 18.1% |
| ARC-AGI-1 | — | 14% |
| Chess Puzzles | 0% | — |
| LiveBench Reasoning | — | 72.3% |
| LiveBench Data Analysis | — | 57.9% |
| LiveBench | — | 57.8% |

## Math

- Mistral Small 3: 15.3 (#290)
- o1-mini: 33.7 (#168)

| Benchmark | Mistral Small 3 | o1-mini |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 6.7% | 46.9% |
| LMArena Math | 1240 | 1358 |
| LiveBench Math | — | 62% |
| MATH Level 5 | — | 89.2% |
| FrontierMath (Feb 2025 set) | — | 1.7% |

## Knowledge

- Mistral Small 3: 25.0 (#258)
- o1-mini: 34.8 (#180)

| Benchmark | Mistral Small 3 | o1-mini |
|---|---|---|
| GPQA Diamond | 47.3% | 62.4% |
| Confabulations | 25.2% | 18.6% |
| LMArena Expert | 1202 | 1316 |

## Multilingual

- Mistral Small 3: 37.5 (#231)
- o1-mini: 43.8 (#177)

| Benchmark | Mistral Small 3 | o1-mini |
|---|---|---|
| LMArena Non-English | 1198 | 1289 |
| LMArena Chinese | 1204 | 1314 |
| LMArena French | 1202 | 1292 |
| LMArena German | 1211 | 1278 |
| LMArena Japanese | 1111 | 1245 |
| LMArena Korean | 1188 | 1223 |
| LMArena Russian | 1216 | 1283 |
| LMArena Spanish | — | 1302 |

## Instruction Following

- Mistral Small 3: 63.9 (#224)
- o1-mini: 67.0 (#200)

| Benchmark | Mistral Small 3 | o1-mini |
|---|---|---|
| LMArena Instruction Following | 1214 | 1304 |
| LiveBench Instruction Following | — | 65.4% |

## Long Context

- Mistral Small 3: 37.8 (#206)
- o1-mini: 40.1 (#156)

| Benchmark | Mistral Small 3 | o1-mini |
|---|---|---|
| LMArena Longer Query | 1246 | 1321 |

## Writing & Preference

- Mistral Small 3: 32.4 (#275)
- o1-mini: 48.6 (#196)

| Benchmark | Mistral Small 3 | o1-mini |
|---|---|---|
| LMArena Text | 1234 | 1317 |
| LMArena Creative Writing | 1195 | 1244 |
| LMArena Multi-Turn | 1217 | 1314 |
| Short-Story Creative Writing | — | 64.9% |
| EQ-Bench Creative Writing | 707 | — |
| LiveBench Language | — | 40.9% |

## FAQ

### Is Mistral Small 3 better than o1-mini?

o1-mini is the stronger model overall, scoring 33.7 to 30.9 on the Noometry Index.

### Is Mistral Small 3 or o1-mini better for coding?

They score almost the same on coding (36.0 vs 35.1); test both on your own repository before choosing.

### How many benchmarks do Mistral Small 3 and o1-mini share?

20 benchmarks have published results for both models. Mistral Small 3 has 24 scored results on Noometry and o1-mini has 39.