“We’re releasing Claude Fable & Mythos 5.2!”

We’re releasing Claude Fable & Mythos 5.2! They’re good models, I have some demos and tips for you.

Fable beats Opus on big, long tasks. Good examples are rewriting an entire codebase, creating an excellent first draft of a large artifact, or exploring ambiguous scenarios.

I expect to see it used to port a lot of stuff to Rust, support journalists in large-scale investigations, and help with research & science. I often still prefer Opus 5.5 for everyday work. Fable’s got a big brain and thinks a little slower.