Pi agent is amazingly efficient

Since my GOAT gpt-5.3-codex was deprecated, it has been hard to get serious work done on the plus plan using gpt-5.5. I have finally found a good solution to this problem with pi agent. It is so barebones that is consumes practically half the number of tokens that Codex does, and gpt-5.5 is so smart that it never feels like it is in a third-party harness.

I have been able to stretch the Plus subscription to 4 days of work(though the repos I work on are small). While pi misses features like computer use and the web search, for those I can still use codex. There's a lot of cool extensions too, and I can switch to using deepseek api when codex limits are reached.

I'd definitely recommend trying out: https://pi.dev/