Why do you like or dislike Diet Coke? At some point, saying what I think is embarrassing is equivalent to saying why.
But, to accept your good faith olive branch, one more go: AI is a space full of grift and real potential. Anthropic's pitch is that the potential is really real. So real, in fact, that it will alter what it means to write software.
It's a big claim. But a simple way to validate it would be to see if Anthropic themselves are producing more or higher quality software than the rest of the industry. If they aren't, something smells. The makers of the tool, and such a well funded and staffed company, should be the best at using it. And, well, Claude Code sucks. It's a buggy mess.
Opencode, on the other hand, is not a buggy mess. It is one of the finest pieces of software I've used in a long time, and I don't mean "for a TUI". And they started writing it after CC was launched. So, to finally answer your question: Opencode is a competitor in a way that brings to question Anthropic's very innermost claim, the transformative nature of AI. I find it embarrassing to answer this question-of-sorts by limply nicking the competitor, rather than using their existence as a call for self improvement. And, Christ, OC is open. It's open source. Anthropic could, at any time, go read the code and do the engineering to make CC just as good. It is embarrassing to be beaten at your own game and then take away the ball.
(If that is what is happening. Of course, this could be a misunderstanding, or a careless push to production, or any number of benign things. But those are uninteresting, so let's assume for the sake of argument that it was intentional).