ChatGPT’s revenue means nothing if reports are to be believed that it loses money on each paying customer on just inference. It’s definitely not enough to support its training costs.

Sam Altman: We're very profitable on inference. https://simonwillison.net/2025/Aug/17/sam-altman/#:~:text=Su...

Independent analysis: Inference is very profitable. https://martinalderson.com/posts/are-openai-and-anthropic-re... https://www.snellman.net/blog/archive/2025-06-02-llms-are-ch...