I absolutely hated talking to claude's opus and I suspect that's part of the problem here. Co-workers would tell me to try 4.6 or 4.8 instead of opus 5. They're all miserable. Sol and astra are the first models i've liked managing. Anthropic models feel as if they have some amount of distain for me and doing my work.

I agree that the LLM behaviors between Anthropic and OpenAI are different enough now that it can lead to different experiences.

I absolutely hate talking to Opus but don’t mind Sol and Astra.

My guess is Martin used Opus.