AITechmeme3 days ago
Anthropic launches Claude Fable 5.1 and Mythos 5.1
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Anthropic released Claude Fable 5.1 and Mythos 5.1, the same model with different safeguards. Fable 5.1 is generally available, while Mythos 5.1 is restricted to trusted access programs. The model costs about 25% less than Fable 5 for typical workloads, with cache read price cuts.
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