Anthropic

Fable 5.2

Anthropic’s generally available Mythos-class flagship (claude-fable-5-2), the same underlying model as Mythos 5.2, with cybersecurity and biology safeguards that fall back to earlier Claude models.

API pricing: $8.00 in / $40.00 out per million tokens

Fable 5.2 benchmark scores

Compare Fable 5.2