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Step 5 Preview
Mistral Medium 3
Mistral Medium 3 is a proprietary model from Mistral AI, released May 7, 2025. It ranks #186 of 351 on the LMArena text leaderboard with a rating of 1370. It costs $0.40 per million input tokens and $2 per million output tokens, with a 128K-token context window.
- Developer
- Mistral AI
- Released
- May 7, 2025
- Context window
- 128K
- Price in / out, per 1M tokens
- $0.40 / $2
- Weights
- Proprietary
- Inputs
- Text, Images, Files
- Reasoning
- No
- Tool use
- Yes
LMArena, by category
| Leaderboard | Rating | Rank | Votes |
|---|---|---|---|
| TextLMArena | 1370 | 186 / 351 | 32.8K |
| CodingLMArena | 1385 | 188 / 346 | 5.8K |
| MathLMArena | 1353 | 216 / 339 | 2.2K |
| Creative writingLMArena | 1343 | 176 / 349 | 4.1K |
| Instruction followingLMArena | 1338 | 198 / 351 | 7.9K |
| Hard promptsLMArena | 1364 | 195 / 351 | 13.6K |
| Multi-turnLMArena | 1383 | 174 / 349 | 5.7K |
| Long queriesLMArena | 1360 | 189 / 330 | 5.9K |
| ExpertLMArena | 1342 | 206 / 305 | 1.8K |
| Legal and governmentIndustries | 1384 | 176 / 325 | 2.1K |
| Medicine and healthcareIndustries | 1381 | 182 / 325 | 2K |
| Business and financeIndustries | 1352 | 191 / 344 | 5.1K |
| ChineseLanguages | 1374 | 204 / 328 | 2K |
| SpanishLanguages | 1364 | 179 / 249 | 565 |
| GermanLanguages | 1378 | 145 / 261 | 998 |
| FrenchLanguages | 1368 | 180 / 252 | 496 |
| JapaneseLanguages | 1316 | 153 / 236 | 917 |
| VisionLMArena | 1157 | 117 / 146 | 10.8K |
LMArena, CC BY 4.0, as of Oct 22, 2026. Where a model is rated at several effort levels, its best is shown.
Compare Mistral Medium 3
Mistral AI
Europe’s leading model lab, with efficient open and commercial models and EU hosting. Founded 2023, based in Paris. mistral.ai
Questions
Who makes Mistral Medium 3?
Mistral Medium 3 is made by Mistral AI, founded 2023 and based in Paris.
How much does Mistral Medium 3 cost?
$0.40 per million input tokens and $2 per million output tokens, at its provider’s list price.
What is Mistral Medium 3’s context window?
128K tokens (131,072).
How does Mistral Medium 3 rank?
#186 of 351 on LMArena’s text leaderboard, rated 1370 (95% interval 1365–1375) from 32,776 votes, as of Oct 22, 2026.
Is Mistral Medium 3 open source?
No. Mistral Medium 3 is proprietary and served through its provider’s API.