Have you tried any of the leading open weight models, like GLM etc. And how does chatGPT or Gemini compare?

And kudos for refusing to use anything from the guy who's OK with his platform proliferating generated CSAM.

I tried GLM 4.7 in Opencode today. In terms of capability and autonomy, it's about on par with Sonnet 3.7. Not terrible for a 10th the price of an Anthropic plan, but not a replacement.