GPQA Diamond (Epoch average of eight attempts)
General QA
Epoch's GPQA Diamond mean accuracy over eight attempts per each of the 198 questions. The explicitly documented Grok 4 July 2025 run includes API failures as incorrect attempts; this repeated-run mean does not have a single-attempt binomial denominator.
Top models (higher is better)
| Model | Score |
|---|---|
| Grok 4 | 87.0 |