After spending ~24 hours working with Fable 5 and Opus 5 on a coding project these are my initial thoughts: - Code quality for both is excellent - Fable 5 does significantly better with open-ended prompts and requests and nails it the first time - Opus 5 can do just as well, just needs a bit more direction - Fable 5 spends more time understanding the code base and being thoughtful with implementation and pushing back when a better option exists - Opus 5 seems to prefer to do what it's told…