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Step 5 Preview
GPT-5 Chat
GPT-5 Chat is a proprietary model from OpenAI. It ranks #150 of 351 on the LMArena text leaderboard with a rating of 1403.
LMArena text1403−1 in 30 days
Rank#150/351
95% interval1399–1408
Votes31.2K
- Developer
- OpenAI
- Released
- Aug 14, 2025
- Context window
- —
- Price in / out, per 1M tokens
- —
- Weights
- Proprietary
- Inputs
- —
- Reasoning
- —
- Tool use
- —
LatestGPT-5 Chat 1403
The rating LMArena published at each update since Aug 14, 2025. Ratings move as votes come in and new models join.
LMArena, by category
| Leaderboard | Rating | Rank | Votes |
|---|---|---|---|
| TextLMArena | 1403 | 150 / 351 | 31.2K |
| CodingLMArena | 1398 | 177 / 346 | 6K |
| MathLMArena | 1407 | 152 / 339 | 1.8K |
| Creative writingLMArena | 1365 | 149 / 349 | 4K |
| Instruction followingLMArena | 1381 | 156 / 351 | 8.2K |
| Hard promptsLMArena | 1404 | 159 / 351 | 15.2K |
| Multi-turnLMArena | 1426 | 109 / 349 | 5.7K |
| Long queriesLMArena | 1399 | 153 / 330 | 6.8K |
| ExpertLMArena | 1403 | 154 / 305 | 1.5K |
| Legal and governmentIndustries | 1431 | 108 / 325 | 1.9K |
| Medicine and healthcareIndustries | 1413 | 144 / 325 | 1.7K |
| Business and financeIndustries | 1399 | 141 / 344 | 5.6K |
| ChineseLanguages | 1422 | 164 / 328 | 2.3K |
| SpanishLanguages | 1399 | 149 / 249 | 901 |
| GermanLanguages | 1404 | 121 / 261 | 702 |
| FrenchLanguages | 1409 | 148 / 252 | 433 |
| JapaneseLanguages | 1409 | 68 / 236 | 524 |
| VisionLMArena | 1232 | 78 / 146 | 39.9K |
LMArena, CC BY 4.0, as of Oct 22, 2026. Where a model is rated at several effort levels, its best is shown.
Compare GPT-5 Chat
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 GPT-5 Chat?
GPT-5 Chat is made by OpenAI, founded 2015 and based in San Francisco.
How does GPT-5 Chat rank?
#150 of 351 on LMArena’s text leaderboard, rated 1403 (95% interval 1399–1408) from 31,183 votes, as of Oct 22, 2026.
Is GPT-5 Chat open source?
No. GPT-5 Chat is proprietary and served through its provider’s API.