Claude Mythos/Fable 5 Benchmarks
Summary
Benchmark results for the Claude Mythos or Fable 5 model are presented.
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Anthropic released benchmarks for Claude Fable 5, a new AI model, showing significant performance improvements.
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Claude Fable 5 and Claude Mythos 5 have been released by Anthropic, offering a 1 million token context window and doubled pricing compared to Opus 4.8. Fable 5 includes strict safety guardrails, while Mythos 5 lacks them. Initial impressions describe it as a powerful and capable model.
@karpathy: This is a super exciting release - Claude Fable 5 is the same underlying model as Mythos but with added safeguards. The…
Claude Fable 5 has been released, claimed to be state-of-the-art across benchmarks with qualitative improvements, especially on complex long tasks. It is the same underlying model as Mythos but with added safeguards.
Claude Fable 5 and Claude Mythos 5
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Claude Fable 5, likely the public-facing version of Claude Mythos 5, has been spotted on Azure and the backend.