Benchmarks
3 benchmarks
All scores come from the Epoch AI Benchmarking Hub (CC BY 4.0) - Epoch's own runs plus external leaderboards Epoch collects. Unrelated benchmarks are never combined into a universal score; Epoch's own composite (ECI) is shown separately on the models page with its methodology.
| Benchmark | Domain | Results | Top model | Top score | Released | Latest run | Type |
|---|---|---|---|---|---|---|---|
| MMLU MMLU benchmark (score column: EM). | knowledge | 119 | GPT-4o (Nov 2024) | 88.1% | 7 Sep 2020 | — | External leaderboard |
| SimpleQA Verified Short factual questions testing parametric knowledge and hallucination. | knowledge | 78 | GPT-6 Astra | 75.6% | 9 Sep 2025 | 2 Sep 2026 | Run by Epoch |
| HLE Humanity's Last Exam: expert-written questions across many subjects. | knowledge | 48 | GPT-6 Astra (unknown thinking) | 54.8% | 23 Jan 2025 | — | External leaderboard |