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.
OpenAI's new small models are faster and cheaper than GPT-5.4—exactly what developers and businesses actually need.
Disclosure: Ziff Davis, CNET's parent company, in 2025 filed a lawsuit against OpenAI, alleging it infringed Ziff Davis ...
OpenAI’s GPT-5.4 mini and nano are here, and they’re designed to help you get stuff done on a budget.
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