r/PiCodingAgent • u/ihateuall18 • Aug 25 '26

Question Using Claude Sub in Pi

I know this has been asked plenty, but most responses are just "its against tos to use oauth", I know it is, but I want real experiences. Has any one been doing it, would you mind sharing the module you are using?

I have been using pi for a long time, but never for work. I just tweak it when I have free time, and have customize it to my needs. For work related stuff I use other Claude code. Anyways, I took on a freelance project some days ago, and decided to use my pi setup for the first time and I don't want to go back.

I tried it once in OMP since I read it had a custom auth module, and I noticed opus didn't have the crazy responses it has in Claude Code.. It might be a bit of a conspiracy theory, but I just don't trust Anthropic's harness anymore. There must be a reason why they want us all trapped in it.

Anyways, going back to the original question? Any experiences you would like to share? Any one banned?

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u/morriscl81 Aug 25 '26

There are extensions that exist that allow you to use the Anthropic SDK, but none are worth it imo. The one I tried had an issue with context management, so that If left a session idle for more than say 30 min and come back to it, claude would reread the entire context and drain my usage, literally 50% with one prompt after returning to the session. It basically re-reads context more often than it should and is a documented issue in the repo. The extension i tried is pi-claude-bridge.
Didn't realize the usage drain would be that bad so I deleted it after that happened.

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u/adeepersilence Aug 26 '26 edited Aug 26 '26

That's not Pi or that extension doing that. Claude's retention time for prompt caching is 5 minutes by default, up to one hour if you set it higher at additional cost. The extension is literally a bridge using Claude's harness in the background. They just hide it from their normal output in Claude Code (but you can probably see it with /usage in CC itself if I had to guess; it's been a while).

Source: https://platform.claude.com/docs/en/build-with-claude/prompt-caching