I've mainly been using Sonnet 4.5 so decided to give Opus 4.5 a whirl to see if could solve an annoying task I've been working on that Sonnet 4.5 absolutely fails on. Just started with "Are you familiar with <task> and can you help me?" and so far the response has been a resounding:

> Taking longer than usual. Trying again shortly (attempt 1 of 10)

> ...

> Taking longer than usual. Trying again shortly (attempt 10 of 10)

> Due to unexpected capacity constraints, Claude is unable to respond to your message. Please try again soon.

I guess I'll have to wait until later to feel the fear...