OpenAI has launched two new models, GPT-5.4 mini and GPT-5.4 nano, following the release of GPT-5.4 earlier this month, which ...

At its developer conference, OpenAI announced a new API, the Assistants API, that it characterizes as a step toward helping developers build “agent-like experiences” within their apps. Using the ...

Have Some Spare Cash? You’ll Need it for OpenAI’s New API Your email has been sent The o1-pro API costs $150 for 1 million input tokens and $600 for 1 million output tokens, much more than GPT-4.5.

OpenAI says that it won’t bring the AI model powering deep research, its in-depth research tool, to its developer API while it figures out how to better assess the risks of AI convincing people to act ...