Video: Peter Gostev compares GPT-6 Astra and Claude Fable 5.1 on cost and coding

Arena shares Peter Gostev's initial take on GPT-6 Astra versus Claude Fable 5.1 and Fable 5 across cost, coding and benchmarks.

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@arenaArchived 2026.09.14Originally posted 2026.09.05

Arena.ai @arenaOriginally posted 2026.09.05

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GPT-6 Astra vs. Claude Fable 5.1 vs. Claude Fable 5: Reactions on Cost, Coding & Benchmarks Hear @petergostev’s initial take on GPT-6 Astra by @OpenAI vs Fable 5.1 by @AnthropicAI directly. https://www.youtube.com/watch?v=HOOvtqNGl00&t=414s

x.com/arena/status/2095979707649118544Archived 2026.09.14 16:04

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