AI Reports · Epoch AI · 2026-10-07 · Blog / commentary
EBR-bench update
GPT-6 Astra scored 100% on the original EBR-bench, reaching a perfect score in over half of its attempts. All of its top scores relied on a card that bypasses the game's default time-constraint expectations, and Epoch AI has decided to ban that card going forward. Multi-agent scaffolds had no clear effect on scores but seemed to encourage models to explore more diverse decks.