In my case T&C on using inout/output is so bad in almost Lal the other providers, that I'm forbidden from using them for work (and it doesn't make sense to pay a separate sub if I have basically two at this point, one direct with Anthropic, one via github.com copilot).

Maybe scared wasn't the best word... but we cannot deny Opus is a great - if not greatest - model at coding and Anthropic is the only one serving it a reasonable prices when going through their subscription model.