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OpenAI releases GPT-5.4 with native computer use and 1-million-token context

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OpenAI released GPT-5.4, designed for professional work, which it said is its first general-purpose model with native computer-use capabilities in Codex and the API, supports up to 1 million tokens of context and is its most factual model yet.

Why it matters

Developers could build agents that operate desktop software directly with OpenAI’s mainline model.

When
5 Mar 2026
ID
WTA-N-2026-0159
Who
OpenAI

Summary by wheresthe.ai, from OpenAI. Checked against the source on 9 Oct 2026.

Source copy: download the page text as saved on 18 Oct 2026 (PDF). Also held by the Internet Archive.

Next stop on this Storyline: Led toOpenAI releases GPT-5.5 to paid ChatGPT users, then the API a day later

Cite this story

WTA-N-2026-0159: “OpenAI releases GPT-5.4 with native computer use and 1-million-token context.” wheresthe.ai, 5 Mar 2026. https://wheresthe.ai/d/openai-gpt-5-4-release-2026-03/ (source: OpenAI: Introducing GPT-5.4).

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