I am saying that because ChatGPT usage is unlimited, I don't have to eat into my Codex limits when I use ChatGPT. Codex certainly has limits. Last time I had a Claude sub (hedging here since much of the info in my comment was outdated), my usage limits on claude.ai threads was shared with Claude Code.

Finally got the nuance. Indeed the chat part of the subscription is unlimited as far as I know. Now that part of your comment makes sense!