What is a credit?

One credit is not equal to one request.

It depends on the model you are using, the length of your query and the amount of words generated.

1 token using GPT-3.5 costs 1 credit

1 token using GPT-4 costs 10 credits

As a rule of thumb: 1000 tokens ≃ 800 english words ≃ 5000 characters.

So, with 200,000 daily credits (PRO plans) you will be able to generate 160,000 english words GPT-3.5 or 16,000 english words with GPT-4 each day.

Not sure what a token is, check our blog post: Understanding OpenAI GPT Tokens.

You can estimate your token consumption with the official OpenAI token calculator.