Anthropic’s two 5.1 configurations share model weights but not safeguards. Fable 5.1 is the broadly available option with effort and cache controls; Mythos 5.1 is reserved for vetted organizations and trusted research programs.
Create royalty-free music in seconds
AI album cover generator
Generate song lyrics for any genre or mood
AI music generator powered by Grammy-nominated producers
Pick up to 3 — we tailor the catalog. Change anytime.