GPT‑5.4 mini and nano

Fast and efficient models optimized for coding and subagents

API Developer Tools Artificial Intelligenceローンチ 2026年3月18日

GPT‑5.4 mini and nano とは？

GPT-5.4 brings powerful reasoning, coding, and agentic workflows into one frontier model, now live in ChatGPT, API, and Codex. With GPT-5.4 mini (2x faster) and nano (lowest cost), build responsive AI systems for coding, subagents, and multimodal tasks. Featuring computer use, web search, and massive context, it’s designed for real-world, high-scale execution.

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