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Independent
InternLM2.5 20B Chat
InternLM2.5 20B Chat is an open-weight model. It ranks #343 of 351 on the LMArena text leaderboard with a rating of 1158.
LMArena text1158
Rank#343/351
95% interval1151–1166
Votes9.9K
- Developer
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- Released
- Sep 27, 2024
- Context window
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- Price in / out, per 1M tokens
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- Weights
- Open · Other
- Inputs
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- Reasoning
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- Tool use
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LatestInternLM2.5 20B Chat 1158
The rating LMArena published at each update since Sep 27, 2024. Ratings move as votes come in and new models join.
LMArena, by category
| Leaderboard | Rating | Rank | Votes |
|---|---|---|---|
| TextLMArena | 1158 | 343 / 351 | 9.9K |
| CodingLMArena | 1159 | 339 / 346 | 1.7K |
| MathLMArena | 1180 | 321 / 339 | 1.4K |
| Creative writingLMArena | 1123 | 347 / 349 | 1.4K |
| Instruction followingLMArena | 1135 | 339 / 351 | 4.1K |
| Hard promptsLMArena | 1158 | 335 / 351 | 2.6K |
| Multi-turnLMArena | 1136 | 343 / 349 | 1.8K |
| Long queriesLMArena | 1149 | 339 / 330 | 1.3K |
| ExpertLMArena | 1151 | 310 / 305 | 604 |
| Legal and governmentIndustries | 1152 | 334 / 325 | 685 |
| Medicine and healthcareIndustries | 1152 | 320 / 325 | 548 |
| Business and financeIndustries | 1115 | 345 / 344 | 1.3K |
| ChineseLanguages | 1200 | 311 / 328 | 959 |
| GermanLanguages | 1063 | 292 / 261 | 265 |
LMArena, CC BY 4.0, as of Oct 22, 2026. Where a model is rated at several effort levels, its best is shown.
Compare InternLM2.5 20B Chat
Questions
How does InternLM2.5 20B Chat rank?
#343 of 351 on LMArena’s text leaderboard, rated 1158 (95% interval 1151–1166) from 9,901 votes, as of Oct 22, 2026.
Is InternLM2.5 20B Chat open source?
InternLM2.5 20B Chat has open weights under the Other license.