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Introducing GPT-5.4 mini and nano

OpenAI launches GPT-5.4 mini and nano, two smaller and faster variants of GPT-5.4 optimised for coding, tool use, multimodal reasoning, and high-volume API workloads.

Mar 17 · 11:00:00 · primary fetch1 sourceupdated Mar 17 · 11:00:00

GPT-5.4 mini and nano are smaller, faster versions of GPT-5.4 optimized for coding, tool use, multimodal reasoning, and high-volume API and sub-agent workloads.

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openai.comIntroducing GPT-5.4 mini and nanoprimary11:00:00