I suspect Anthropic was seeing a huge spike of concurrent model usage at a too fast of a rate that claude code just doesn't do, CC is rather "slow" at api calls per minute. Also lots and lots of cache, the sheer amount of cache that claude does is insane.
It’s hard to say exactly what prompted the decision but they banned people paying $200/mo without warning & without any reasonable appeal system in place. It’s a Google form that is itself reviewed by some automated system that may or may not ever get back to you.
This was already an ongoing issue prior to 3rd party tools using Claude subscriptions, there are reports of false positive automated bans going back for several months.
I have not seen or heard of this happening w/ Codex, and rather than trying to shut down 3rd party tools that want to integrate with their ecosystem they have worked with those projects to add official support.
I’m more impressed with Codex as a product in general as well. Their new desktop app is great & feels an order of magnitude better than Claude’s.
Overall HN crowd seems heavily biased in favor of Anthropic (or maybe just against OpenAI?) but IMO Anthropic needs to take a step back and reset. If they keep on the current path of just making small iterative improvements to Claude Code and Claude Desktop they are going to fall very far behind.