API pricing will be 5 per 1 million input tokens and 30 per 1 million output tokens, with a 1 million context window. (Remember, you will …

OpenAI's API pricing structure charges $5 per 1 million input tokens and $30 per 1 million output tokens, with support for a 1 million token context window. This pricing model reflects the higher cost of processing output tokens compared to input tokens, while enabling users to work with significantly longer documents and conversations through the expanded context window.

Source: Sam Altman (X) | 2026-04-23