# Connect Codex

Route requests through the ChatGPT/Codex subscription you already pay for.

*ProxyLLM docs · https://proxyllm.ai/docs/codex*

Codex Hosted turns the ChatGPT/Codex subscription you already pay for ($20-200/mo) into an OpenAI-compatible endpoint. Work that would bill per token on the API runs on your subscription, and ProxyLLM tracks what it would have cost so you can see the savings.

## Connect your subscription

Two ways, same result:

- **Dashboard**: open [Seats](https://proxyllm.ai/dashboard/seats) and follow the Connect Codex steps.
- **CLI**: run this on the machine where you're signed into Codex:

```bash
npx proxyllm codex connect
```

The CLI signs you into your ProxyLLM account in the browser, uploads your Codex sign-in, and confirms the connection. Check it any time with `npx proxyllm codex status`.

## Models

Codex serves its own model namespace, separate from the OpenAI API names, and OpenAI rotates it over time. Treat model IDs as changeable:

- Use the stable tiers **`flagship`** (best available) or **`mini`** (cheaper tier) as the model in your requests. ProxyLLM resolves them to your account's current models at request time.
- [`GET /v1/models`](/docs/api/models) lists the model names and tiers the gateway accepts. If you send a Codex model name that OpenAI has since retired, ProxyLLM substitutes the current flagship and the request succeeds.

## Usage limits

Your ChatGPT plan enforces its own limits in 5-hour and weekly windows. ProxyLLM surfaces them:

```bash
npx proxyllm usage
```

or on the [Usage page](https://proxyllm.ai/dashboard/usage). When a window is exhausted, a routing key with more lanes falls through to the next one automatically ([how routing works](/docs/routing-keys)).

## If it stops working

A Codex sign-in can expire. If requests start failing with a "no session" error, reconnect with `npx proxyllm codex connect` or from the [Seats page](https://proxyllm.ai/dashboard/seats).