Hermes Agent supports Sign in with ChatGPT

Open-source agent that learns skills and remembers you across sessions.

How to use your ChatGPT plan in Hermes Agent

Open Hermes Agent and choose Sign in with ChatGPT.
Log in with your ChatGPT account and approve access.
If you have ChatGPT Plus or Pro, choose to use your ChatGPT plan for AI requests. Eligible usage counts toward your plan limits.