Hot take: Maybe this is for the best?
Not to get political, but maybe it's a good thing that c.ai decided to ruin itself. Why? 'Cause apparently c.ai is based on Google LaMDA. Its creators were (or are) employees of Google and Karandeep, the current CEO used to work at Meta and Microsoft.
And we all know these three are crap in terms of morals, genocidal at its finest (free palestine 🇵🇸). I'm boycotting (as everyone should).
(might get deleted or flamed for this lolol doesn't matter)
Btw, from all the LLMs I've tried so far, deepseek 4 seems most similar to the old c.ai (if you're writing stories and looking for dialogue and not looking to be bombarded by scene building and all that)