これ後でやろう。ガチだったらCLAUDE.mdに入れてカスタムFable作れる?
Did I just unlock claude-fable-5-lite? 😂
Since Fable 5 got pulled (US export control order, Anthropic is contesting it), I wanted to see how much of its character lives in the system prompt vs. the model itself.
I ran the leaked Fable 5 prompt on Opus 4.8 head-to-head against stock 4.8.