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OpenAI

Is GPT-5.4 Nano out? Yes, since March 17, 2026

Yes. GPT-5.4 Nano was released on March 17, 2026.

A browser notification for each confirmed release in this family. No account or email.

Have you used it? GPT-5.4 Nano

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Lab
OpenAI
Family
GPT
Release date
Source
OpenAI · GPT-5.4 mini and nano

What changed

  • context 400k tokens · Context window of GPT-5.4 Nano. GPT-5 Nano is the previous model of the same tier, but the gap is beyond what a percentage explains.
  • price +300 % · Prompt price compared with GPT-5 Nano, same tier in this family. Went from $0.050 / MTok to $0.200 / MTok. Lower is better.

About GPT-5.4 Nano

GPT-5.4 nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks. It supports text and image inputs and is designed for low-latency...

Next GPT model to watch

Questions

When was GPT-5.4 Nano released?
GPT-5.4 Nano was released on March 17, 2026.
Who makes GPT-5.4 Nano?
GPT-5.4 Nano is made by OpenAI.
What comes after GPT-5.4 Nano?
GPT-5.5, released on April 23, 2026.