I was blown away by Opus 4.5 in November of 2025. I am even more astounded at the quality of Astra for every day medium to hard coding tasks. And Astra scales. Claude in its current state does not.

It is night and day comparing this model to Fable 5.1. The benchmarks do not demonstrate the major improvement that Astra represents for real world use.

It communicates clearly. It stops (more often) when there is a judgement call it needs to escalate. It finds opportunities for small abstractions and adds them without asking. It replaces Fable’s five line comments with a single direct and clear sentence, in passing.

It’s substantially faster than Fable. So much so that I blew through a business 5x weekly subscription in about 6 hours. I got 2 to 3 days of work done in that time (had I been using Claude).

I could go on, but I think I’ve made my point. Astra is a next level product for software development. (Codex UX kind of sucks, but the model is so good it doesn’t even matter.)