Reach for Opus 5.5 if: • You build things you can look at e.g. Interfaces, prototypes, 3D scenes, games, tools. • You want a collaborator for writing and creative work. • You need someone to be, e.g. Personas, negotiations, and analysis with a point of view Stay on Fable 5.1 if: • The problem is too big to eyeball. • The deliverable has to be right the first time. • You prefer Fable’s prose. Keep Astra or GPT-5.6 Sol nearby if: • The deliverable has a clock. • You need an editor, not a…