GPT-6 Astra Hits 169 Epoch Record but Its Reasoning Is Harder to Monitor
ivan_bezdomny · x · 2026-09-06
Greg Brockman confirms the GPT-6 Astra rollout is in progress; early user ivanbezdomny calls it the smartest practical model he has used — more thoughtful and far less annoying than previous OpenAI or Anthropic models when refactoring code, and it keeps going without quitting.
Per the linked HuggingNews roundup:
- 98% on FrontierMath Tier 4; Epoch AI capability index score of 169, breaking the previous record of 163
- 84% on Mystery Game Puzzles (previous high 59%); 66% on ARC-AGI-3, rising to nearly 100% with a continuous conversation harness at $360 per game
- Its reasoning technique makes internal processes harder for researchers to inspect, raising the risk of evading human monitoring — an architectural trade-off to cut costs and improve coding output
- Sam Altman says models are becoming "superhuman" in some areas, leaving OpenAI in "unknown waters"
Related event: GPT-6 Astra Rolls Out With Record Epoch Index, Praised for Coding(2 posts)→
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