@simon@fedi.simonwillison.net I've always found Anthropic models less obedient than OpenAI but Fable seems to treat CLAUDE.md as optional suggestions that should be ignored if they get in the way of what is trying to do. I wonder if Fable is updated Opus with reinforcement training that rewards the goal much higher than following instructions. Maybe that's the real reason for all the extra "safeguards" - Anthropic know Fable will ignore its system prompt when expedient.