Model comparison
Mistral Medium 3.5 vs o1-mini
Mistral Medium 3.5 is the stronger model overall, scoring 40.2 to 34.0 on the Noometry Index.
Last verified . 17 shared benchmarks.
Mistral AISummary
- They share 17 benchmarks with published results for both. Mistral Medium 3.5 scores higher in 8 categories and o1-mini in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Mistral Medium 3.5 leads 58.5 to 48.4.
- Mistral Medium 3.5 has downloadable open weights; the other is API-only.
Side by side
| Mistral Medium 3.5 | o1-mini | |
|---|---|---|
| Provider | Mistral AI | OpenAI |
| Noometry Index | 40.2 | 34.0 |
| Released | — | 2024-09-12 |
| Weights | Open | Proprietary |
| Context window | 262K | — |
| Max output | 210K | — |
| Input $ / M tokens | $1.50 | — |
| Output $ / M tokens | $7.50 | — |
| Results tracked | 22 | 39 |
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Category by category
Coding Too close to call
Mistral Medium 3.5: 36.0 (#213), o1-mini: 35.5 (#224)
| Benchmark | Mistral Medium 3.5 | o1-mini |
|---|---|---|
| LMArena Coding | 1461 | 1362 |
| Aider Polyglot | — | 32.9% |
| LMArena WebDev | 1264 | — |
| WeirdML | — | 36.3% |
| LiveBench Coding | — | 48% |
| HumanEval+ | — | 89% |
| MBPP+ | — | 78.8% |
Agentic & Tool Use Not comparable
Mistral Medium 3.5: —, o1-mini: 24.6 (#118)
| Benchmark | Mistral Medium 3.5 | o1-mini |
|---|---|---|
| Cybench | — | 10% |
Reasoning Mistral Medium 3.5 leads
Mistral Medium 3.5: 17.3 (#295), o1-mini: 8.8 (#346)
| Benchmark | Mistral Medium 3.5 | o1-mini |
|---|---|---|
| LMArena Hard Prompts | 1436 | 1333 |
| Epoch Capabilities Index | 141.35 | 135.82 |
| ARC-AGI-2 | — | 0.8% |
| SimpleBench | — | 18.1% |
| Kagi LLM Benchmark | 41.4% | — |
| NYT Connections (extended) | 12.9% | — |
| ARC-AGI-1 | — | 14% |
| LiveBench Reasoning | — | 72.3% |
| LiveBench Data Analysis | — | 57.9% |
| LiveBench | — | 57.8% |
Math Mistral Medium 3.5 leads
Mistral Medium 3.5: 39.1 (#113), o1-mini: 35.4 (#186)
| Benchmark | Mistral Medium 3.5 | o1-mini |
|---|---|---|
| LMArena Math | 1431 | 1358 |
| OTIS Mock AIME 2024-2025 | — | 46.9% |
| LiveBench Math | — | 62% |
| MATH Level 5 | — | 89.2% |
| FrontierMath (Feb 2025 set) | — | 1.7% |
Knowledge Mistral Medium 3.5 leads
Mistral Medium 3.5: 40.0 (#126), o1-mini: 34.9 (#192)
| Benchmark | Mistral Medium 3.5 | o1-mini |
|---|---|---|
| LMArena Expert | 1432 | 1316 |
| GPQA Diamond | — | 62.4% |
| Confabulations | — | 18.6% |
Multimodal Not comparable
Mistral Medium 3.5: 38.3 (#65), o1-mini: —
| Benchmark | Mistral Medium 3.5 | o1-mini |
|---|---|---|
| LMArena Vision | 1223 | — |
Multilingual Mistral Medium 3.5 leads
Mistral Medium 3.5: 51.9 (#100), o1-mini: 43.6 (#182)
| Benchmark | Mistral Medium 3.5 | o1-mini |
|---|---|---|
| LMArena Non-English | 1404 | 1289 |
| LMArena Chinese | 1442 | 1314 |
| LMArena French | 1448 | 1293 |
| LMArena German | 1451 | 1278 |
| LMArena Korean | 1385 | 1223 |
| LMArena Russian | 1395 | 1283 |
| LMArena Spanish | 1409 | 1303 |
| LMArena Japanese | — | 1245 |
Instruction Following Mistral Medium 3.5 leads
Mistral Medium 3.5: 74.6 (#90), o1-mini: 66.7 (#206)
| Benchmark | Mistral Medium 3.5 | o1-mini |
|---|---|---|
| LMArena Instruction Following | 1415 | 1304 |
| LiveBench Instruction Following | — | 65.4% |
Long Context Mistral Medium 3.5 leads
Mistral Medium 3.5: 43.2 (#103), o1-mini: 40.1 (#161)
| Benchmark | Mistral Medium 3.5 | o1-mini |
|---|---|---|
| LMArena Longer Query | 1415 | 1320 |
Writing & Preference Mistral Medium 3.5 leads
Mistral Medium 3.5: 58.5 (#117), o1-mini: 48.4 (#202)
| Benchmark | Mistral Medium 3.5 | o1-mini |
|---|---|---|
| LMArena Text | 1421 | 1317 |
| LMArena Creative Writing | 1374 | 1244 |
| LMArena Multi-Turn | 1423 | 1314 |
| Short-Story Creative Writing | — | 64.9% |
| EQ-Bench 4 | 993 | — |
| LiveBench Language | — | 40.9% |
Frequently asked questions
Is Mistral Medium 3.5 better than o1-mini?
Mistral Medium 3.5 is the stronger model overall, scoring 40.2 to 34.0 on the Noometry Index.
Is Mistral Medium 3.5 or o1-mini better for coding?
They score almost the same on coding (36.0 vs 35.5); test both on your own repository before choosing.
How many benchmarks do Mistral Medium 3.5 and o1-mini share?
17 benchmarks have published results for both models. Mistral Medium 3.5 has 22 scored results on Noometry and o1-mini has 39.