Yeah it was crazy. Nowadays I use pi with OpenAI GPT 5.4/5.5, which to me seems both better and more generous than Claude. I supplement it with OpenCode Zen to get access to a bunch of models at token cost, and OpenCode Go ($10/mo) to get subscription-style access to Kimi, GLM and friends.
What is pi?
The minimalistic harness famous for having a tiny system prompt (avoids context pollution), and being what underlies openclaw. (https://pi.dev)