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o1-mini
o1-mini is a proprietary model from OpenAI. It ranks #240 of 351 on the LMArena text leaderboard with a rating of 1317.
LMArena text1317
Rank#240/351
95% interval1313–1321
Votes52K
- Developer
- OpenAI
- Released
- Sep 17, 2024
- Context window
- —
- Price in / out, per 1M tokens
- —
- Weights
- Proprietary
- Inputs
- —
- Reasoning
- —
- Tool use
- —
Latesto1-mini 1317
The rating LMArena published at each update since Sep 17, 2024. Ratings move as votes come in and new models join.
LMArena, by category
| Leaderboard | Rating | Rank | Votes |
|---|---|---|---|
| TextLMArena | 1317 | 240 / 351 | 52K |
| CodingLMArena | 1362 | 217 / 346 | 8.5K |
| MathLMArena | 1358 | 212 / 339 | 7.5K |
| Creative writingLMArena | 1244 | 275 / 349 | 7.9K |
| Instruction followingLMArena | 1304 | 233 / 351 | 21.5K |
| Hard promptsLMArena | 1333 | 226 / 351 | 13.9K |
| Multi-turnLMArena | 1314 | 236 / 349 | 9.3K |
| Long queriesLMArena | 1320 | 228 / 330 | 7.9K |
| ExpertLMArena | 1316 | 225 / 305 | 3.2K |
| Legal and governmentIndustries | 1315 | 239 / 325 | 3.1K |
| Medicine and healthcareIndustries | 1297 | 248 / 325 | 2.6K |
| Business and financeIndustries | 1287 | 247 / 344 | 6.1K |
| ChineseLanguages | 1314 | 242 / 328 | 4.3K |
| SpanishLanguages | 1303 | 216 / 249 | 425 |
| GermanLanguages | 1278 | 212 / 261 | 1.2K |
| FrenchLanguages | 1293 | 220 / 252 | 424 |
| JapaneseLanguages | 1245 | 188 / 236 | 1.1K |
LMArena, CC BY 4.0, as of Oct 22, 2026. Where a model is rated at several effort levels, its best is shown.
Compare o1-mini
OpenAI
The lab behind GPT and ChatGPT, which brought large language models to hundreds of millions of people. Founded 2015, based in San Francisco. openai.com
Questions
Who makes o1-mini?
o1-mini is made by OpenAI, founded 2015 and based in San Francisco.
How does o1-mini rank?
#240 of 351 on LMArena’s text leaderboard, rated 1317 (95% interval 1313–1321) from 51,981 votes, as of Oct 22, 2026.
Is o1-mini open source?
No. o1-mini is proprietary and served through its provider’s API.