OpenAI has introduced GPT-5.4 mini and GPT-5.4 nano, two small, cost-efficient versions of its flagship AI model.  In a press release, OpenAI said that 5.4 nano and mini are “our most capable small ...
OpenAI just launched GPT 5.4 mini and nano models which are now live in the API, Codex, and ChatGPT with improved coding capabilities.
It's fast, furious, and somewhat bonkers, but it gets the job done.