GPT-5.4 mini
- Made by
- OpenAI
- Released
- Announced in
- Introducing GPT-5.4 mini and nanoopenai.com
- Event
- GPT-5.4 mini and nano
- API record
- /api/v1/models/gpt-5-4-mini
Benchmark results
| Benchmark | Score | Source check |
|---|---|---|
| Humanity's Last ExamNo tools · xhigh effort | 28.2% | CheckedA person checked this number against its source on 20 Oct 2026. This confirms the number matches what the lab published, not that the score was reproduced. |
| Humanity's Last ExamWith tools · xhigh effort; tools not named | 41.5% | CheckedA person checked this number against its source on 20 Oct 2026. This confirms the number matches what the lab published, not that the score was reproduced. |
| SWE-bench Proxhigh effort | 54.4% | CorroboratedThe same number is printed in 1 other lab document: 1 |
| GPQA Diamondxhigh effort | 88.0% | CheckedA person checked this number against its source on 20 Oct 2026. This confirms the number matches what the lab published, not that the score was reproduced. |
Sources
Reported by OpenAI
- Introducing GPT-5.4 mini and nanoopenai.com · 17 Mar 2026
Our capture of the source 
Our capture of the source