Blog Post

Microsoft Foundry Blog
4 MIN READ

Introducing OpenAI’s GPT-5.4 mini and GPT-5.4 nano for low-latency AI

Naomi Moneypenny's avatar
Mar 17, 2026
Imagine you’re a developer building a research assistant agent on top of GPT‑5.4. The agent retrieves documents, summarizes findings, and answers follow‑up questions across multiple turns. In early t...
Updated Mar 17, 2026
Version 4.0