Claude Opus 5 vs Claude Fable 5.1: Same Brain, Two Jobs
Desmond Park·

These two Anthropic flagships are both excellent, but they are not the same tool. Claude Opus 5 is the coding workhorse, while Claude Fable 5.1 is the broad-reasoning all-rounder — and at $10 vs $5, you are paying for a different kind of intelligence. Here is how they split the difference.


