# OpenAI — Introducing GPT-5.4 mini and nano

- Company: OpenAI (openai.com)
- Announced: 2026-03-17T10:00:00+00:00
- Category: new-model
- Subject: GPT / ChatGPT / API
- Models affected: GPT-5.4 mini, GPT-5.4 nano
- Source: https://openai.com/index/introducing-gpt-5-4-mini-and-nano
- Record: https://forck.live/items/227-introducing-gpt-5-4-mini-and-nano

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

## Evidence

Verbatim from https://openai.com/index/introducing-gpt-5-4-mini-and-nano:

> 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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