Pricing
Output tokens
The tokens a model generates, including any reasoning it produces. Usually priced several times higher than input.
Because output is pricier and slower, the length of answers drives much of the cost. Reasoning models add hidden thinking tokens, also billed as output.
Frequently asked questions
What does Output tokens mean?
The tokens a model generates, including any reasoning it produces. Usually priced several times higher than input. Because output is pricier and slower, the length of answers drives much of the cost. Reasoning models add hidden thinking tokens, also billed as output.