> This model doesn't shy away from drawing upon all its knowledge. It casually refers to alpha premultiplication and fundamental frequencies in the same breath. It is fond of acronyms.

Yes - I had Fable tackle some long-standing bugs in some code I had and I quickly lost track of what it was talking about and had to ask a lot of clarifying questions.

It killed my bugs like they were nothing though. Opus and even GPT5.5 had churned on these same things for ages, but even with my manual help we made no progress.

It felt like they weren't the slightest bit challenging for Fable. So glad to see it back!