Oh My Pi v18.18.5

@oh-my-pi/pi-catalog

Added

• Added Claude Fable 5.2 and Claude Mythos 5.2 ($8/$40 per MTok, $0.20 cache reads, 1M context)

Fixed

• Fixed newly discovered Anthropic Fable/Mythos models showing as text-only, non-reasoning, and mispriced before models.dev catalogs them
• Fixed Claude Mythos 5.1 not using thinking prefix-binding controls, which it needs on every account

Full Changelog: https://github.com/can1357/oh-my-pi/compare/v18.18.4...v18.18.5