Gemini 4 Argon
Claude Opus 5.5
Muse Wonder
MiMo-V2.6-Pro
Qwen3.8-Max
Kimi K3
GLM-5.3
GPT-5.5
ERNIE 5.1
DeepSeek-V4.1-Flash-20260910
Grok 4.20 Beta
amazon-nova-experimental-chat
Dola Seed 2.0 Pro
NVIDIA-Nemotron-3-Ultra-550B-A55B
Gemma 4 31B
Step 5 Preview
Yi 1.5 34B Chat
Yi 1.5 34B Chat is an open-weight model from 01.AI. It ranks #334 of 351 on the LMArena text leaderboard with a rating of 1173.
LMArena text1173
Rank#334/351
95% interval1168–1178
Votes24.1K
- Developer
- 01.AI
- Released
- Jun 2, 2024
- Context window
- —
- Price in / out, per 1M tokens
- —
- Weights
- Open · Apache-2.0
- Inputs
- —
- Reasoning
- —
- Tool use
- —
LatestYi 1.5 34B Chat 1173
The rating LMArena published at each update since Jun 2, 2024. Ratings move as votes come in and new models join.
LMArena, by category
| Leaderboard | Rating | Rank | Votes |
|---|---|---|---|
| TextLMArena | 1173 | 334 / 351 | 24.1K |
| CodingLMArena | 1169 | 333 / 346 | 3.8K |
| MathLMArena | 1182 | 319 / 339 | 3K |
| Creative writingLMArena | 1135 | 339 / 349 | 3.6K |
| Instruction followingLMArena | 1139 | 338 / 351 | 9K |
| Hard promptsLMArena | 1160 | 334 / 351 | 6.7K |
| Multi-turnLMArena | 1153 | 334 / 349 | 3.4K |
| Long queriesLMArena | 1143 | 342 / 330 | 2.1K |
| ExpertLMArena | 1144 | 316 / 305 | 1K |
| Legal and governmentIndustries | 1196 | 317 / 325 | 1.5K |
| Medicine and healthcareIndustries | 1159 | 318 / 325 | 1.3K |
| Business and financeIndustries | 1135 | 335 / 344 | 2.8K |
| ChineseLanguages | 1213 | 303 / 328 | 2.9K |
| SpanishLanguages | 1121 | 282 / 249 | 458 |
| GermanLanguages | 1111 | 283 / 261 | 871 |
| FrenchLanguages | 1157 | 275 / 252 | 399 |
| JapaneseLanguages | 1021 | 263 / 236 | 506 |
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 1.5 34B Chat
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 1.5 34B Chat?
Yi 1.5 34B Chat is made by 01.AI, founded 2023 and based in Beijing.
How does Yi 1.5 34B Chat rank?
#334 of 351 on LMArena’s text leaderboard, rated 1173 (95% interval 1168–1178) from 24,146 votes, as of Oct 22, 2026.
Is Yi 1.5 34B Chat open source?
Yi 1.5 34B Chat has open weights under the Apache-2.0 license.