OpenAI release measurement; not Epoch or Artificial Analysis measurements.
Browse the latest scores, model modes, release dates, and parameter sizes for GPQA Diamond (OpenAI Sep 2026).
Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology
| Rank | Model | License | |||
|---|---|---|---|---|---|
 GPT-6 Astra unknown | 96.00 | 2026-09-03 | Unknown | Closed | |
GPT-5.6 Sol unknown | 94.60 | 2026-06-26 | Unknown | Closed |
