alt Hacker News> Since I discovered pi I cancelled my Claude subscription and subscribed to ChatGPT.
Sorry, what is pi and how are you using it with ChatGPT for agentic coding?
Replies
joshstrange • yesterday at 9:51 PM
> Sorry, what is pi
https://github.com/badlogic/pi-mono/tree/main/packages/codin...
> how are you using it with ChatGPT for agentic coding?
OpenAI has publically blessed people using their subscriptions with different harnesses, like OpenCode and Pi.
wyre • yesterday at 10:13 PM
Pi.dev
Extensible coding agent written in typescript. It’s exactly what you (I’m projecting) want out of Claude Code if you’re okay investing time into building your harness or prompting an agent to build it.
This is a better introduction to it: https://mariozechner.at/posts/2025-11-30-pi-coding-agent/
I have nothing against Codex's cli or OpenCode. I just found pi is sufficient for me and it's easy to understand what's going on under the hood.
By ChatGPT I mean the subscription plan, not the web UI. I only use gpt-5.3-codex with pi.