A ChatGPT subscription starts at $20 a month and is one of the cheapest ways to run inference. OpenAI has also been fairly relaxed lately about third-party agents using them, which makes the deal even better for a lot of us.

But a subscription can't be used as freely as pay-per-token access, and the providers police the difference. Anthropic recently narrowed its subscriptions to first-party apps; OpenAI has its own limits. Here's what will get you banned from an OpenAI subscription.

Sharing your subscription

A ChatGPT subscription is strictly personal. One subscription, one user. Sharing yours breaks OpenAI's terms of service.

That also covers account pooling and account rotation, where several people share the same credentials to dodge rate limits.