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Yi Lightning
Yi Lightning is a proprietary model from 01.AI. It ranks #248 of 351 on the LMArena text leaderboard with a rating of 1302.
LMArena text1302+0 in 30 days
Rank#248/351
95% interval1297–1306
Votes27.3K
- Developer
- 01.AI
- Released
- Oct 15, 2024
- Context window
- —
- Price in / out, per 1M tokens
- —
- Weights
- Proprietary
- Inputs
- —
- Reasoning
- —
- Tool use
- —
LatestYi Lightning 1302
The rating LMArena published at each update since Oct 15, 2024. Ratings move as votes come in and new models join.
LMArena, by category
| Leaderboard | Rating | Rank | Votes |
|---|---|---|---|
| TextLMArena | 1302 | 248 / 351 | 27.3K |
| CodingLMArena | 1312 | 248 / 346 | 4.3K |
| MathLMArena | 1300 | 243 / 339 | 3.9K |
| Creative writingLMArena | 1280 | 242 / 349 | 3.8K |
| Instruction followingLMArena | 1278 | 249 / 351 | 10.9K |
| Hard promptsLMArena | 1302 | 246 / 351 | 7K |
| Multi-turnLMArena | 1311 | 240 / 349 | 4.7K |
| Long queriesLMArena | 1297 | 252 / 330 | 3.6K |
| ExpertLMArena | 1286 | 239 / 305 | 1.5K |
| Legal and governmentIndustries | 1328 | 230 / 325 | 1.7K |
| Medicine and healthcareIndustries | 1306 | 241 / 325 | 1.5K |
| Business and financeIndustries | 1271 | 255 / 344 | 3.4K |
| ChineseLanguages | 1320 | 237 / 328 | 2.7K |
| SpanishLanguages | 1316 | 210 / 249 | 341 |
| GermanLanguages | 1267 | 218 / 261 | 700 |
| FrenchLanguages | 1306 | 213 / 252 | 270 |
| JapaneseLanguages | 1228 | 196 / 236 | 565 |
LMArena, CC BY 4.0, as of Oct 22, 2026. Where a model is rated at several effort levels, its best is shown.
Compare Yi Lightning
01.AI
Founded by Kai-Fu Lee, builds the Yi family of bilingual models. Founded 2023, based in Beijing. 01.ai
Questions
Who makes Yi Lightning?
Yi Lightning is made by 01.AI, founded 2023 and based in Beijing.
How does Yi Lightning rank?
#248 of 351 on LMArena’s text leaderboard, rated 1302 (95% interval 1297–1306) from 27,332 votes, as of Oct 22, 2026.
Is Yi Lightning open source?
No. Yi Lightning is proprietary and served through its provider’s API.