How to use the ChatGPT API key There are generally two ways to use an OpenAI key: The key is entered into the settings page of a software program that accesses OpenAI for you. The key is used ...

OpenAI charges per 1,000 tokens in a pay-as-you-go model. It’s important to keep in mind that a single API request can process up to 4,096 tokens for most models. Advanced tasks and fine-tuning API ...

Typically, we use JWT tokens for token-based authentication. For all subsequent requests to the API, the token is passed with the request, preferably in the request header.