Fable is the most powerful AI you're allowed to use...
Fireship — Jun 11, 2026 — talk
Why watch
A review and demo of Claude Fable, Anthropic's new Mythos-class AI model designed for public use. The video compares Fable 5 against Opus 4.8 to evaluate whether it lives up to the hype as a powerful yet accessible AI coding assistant. Targeted at developers curious about the latest Anthropic releases.