GPT-6 Astra beats Claude Fable 5.1 at metaprompting and inference tuning, user says

cheaty @cheatyyyyOriginally posted 2026.09.05

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okay, i think i can call it now GPT-6 Astra is miles better than Claude Fable 5.1, it's amazing at metaprompting, it's amazing at fixing niche issues, it's now optimizing my inference stack to run MiniMax H3 on RTX Pro 6000s even faster i was not familiar with your game, OpenAI