OpenAI claims its next-generation AI model Astra solved 10 complex math problems; Anthropic says Claude Fable solved five

AnthropicAugust 2, 2026en

Anthropic

AI Global Wire

OpenAI says its unreleased Astra model solved or made progress on 10 long-standing mathematics problems. Anthropic has responded by claiming its publicly available Claude Fable model independently solved five of the same challenges.

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• OpenAI
• Anthropic