Anthropic banned Pi, a third party harness
Users are reporting issues in discord, regarding using Claude Code subscription with Pi
You can always pay for Anthropic models through the API usage. That still works... but I wonder if anybody will want to pay that much.
You'd probably go with a different model or API provider if you have to pay those costs yourself.
The hope is that we get more usage based pricing across SaaS, DocuSign is a great example.