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Applied AI·November 9, 2026·1 min read

Anthropic announces Claude Fable 5.2 and Mythos 5.2. Theye already solved black hole physics problems.

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If Claude Fable 5.2 and Mythos 5.2 are already tackling black hole physics problems, the ceiling on domain reasoning continues to rise — but verification remains the choke point. For teams in scientific or quantitative domains, the move now is to build eval harnesses and human review loops, not just plug in a stronger model.