Through that experience, I got an up-close view of how software engineering teams work, how good products are launched, and ...
OpenAI launches GPT-5.4 mini and nano, bringing near-flagship AI performance to free ChatGPT users at a fraction of the cost.
OpenAI’s GPT‑5.4 mini is now available in the API, Codex, and ChatGPT, whereas GPT‑5.4 nano is only available in the API.