Two ways to use Codex and its usage?

Codex “usage” is tracked in two totally different places depending on how you logged in, and that’s why your OpenAI Platform → Usage page stays at $0.

1) Two ways to use Codex (and they are metered differently)

A) Codex logged in with ChatGPT account (subscription mode)

• You sign in to Codex (web/CLI/IDE) using your ChatGPT login
• You consume message-based limits (5-hour window + weekly caps), and possibly ChatGPT credits when you exceed included limits (OpenAI Developers)
• This usage is NOT shown on platform.openai.com/usage (because it’s not API-key billing)

B) Codex using an API key (API billing mode)

• You use an API key (SDK/CLI/your app)
• You pay per token (usage-based billing) (OpenAI Developers)
• This usage IS shown on platform.openai.com → Usage (tokens/requests/spend)

That’s why your screenshot shows $0, 0 tokens, 0 requests—it only reflects API-key traffic, and you haven’t sent any. (OpenAI Developers)

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2) How to track usage (exactly)

If you’re using Codex via ChatGPT login (the one giving “rate limit resets on…”)

Track it here: Codex Usage Dashboard (OpenAI Developers)

In a browser (while logged into ChatGPT), open:

https://chatgpt.com/codex/settings/usage

That page is where OpenAI says you can see your current limits. (OpenAI Developers)

While you’re inside Codex CLI, you can also see remaining limits with:

• /status (OpenAI Developers)

If you’re using Codex via API key

Go to platform.openai.com → Usage (the page in your screenshot). That will show tokens/spend only after you make API requests. (OpenAI Developers)

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3) Quick way to tell which mode you’re in

• If you see “You’re out of Codex messages… resets on …” → you’re hitting ChatGPT subscription limits (track in Codex usage dashboard / /status). (OpenAI Developers)
• If your Platform Usage page shows tokens/spend increasing → you’re using API key billing. (OpenAI Developers)

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