Best way to continue a Codex chat in ChatGPT after hitting the Codex usage limit?
I keep running into a practical problem: I’ll be deep into a long Codex development chat, hit my Codex usage limit, and then I still want to keep working.
What’s the best way to move that active Codex conversation into ChatGPT so ChatGPT can continue the work with as little context loss as possible?
I’m not looking to permanently migrate away from Codex. I specifically want a fallback workflow for when Codex usage runs out.
Ideally, I want ChatGPT to pick up almost exactly where Codex stopped, including:
- What has already been built
- Current architecture
- Files and paths being worked on
- Recent code changes
- Decisions already made and why
- Bugs already investigated
- Failed approaches that shouldn’t be repeated
- Current TODOs
- Environment/config details
- Commands being used
- Important constraints or things that should not be changed
- The exact task Codex was working on when usage ran out
For people who regularly hit their Codex limit, what works best?
Do you:
Ask Codex to create a detailed handoff prompt before the limit hits?
Copy the Codex conversation into ChatGPT?
Have Codex maintain a handoff/continuity file in the repo?
Use AGENTS.md, README, or another persistent context file?
Upload the repo/files to ChatGPT along with a summary?
Have a specific prompt you run in Codex that creates everything ChatGPT needs?
Use some other workflow or automation?
The ideal solution would also work in reverse, so once Codex usage resets I can move the updated context from ChatGPT back into Codex without losing what was done in the meantime.
If you’ve solved this, I’d really appreciate your exact workflow, especially if you use Codex heavily enough to hit the weekly limit regularly.
Bonus: if you have a good “handoff to ChatGPT” prompt you run before Codex usage runs out, please share it.