---
id: "2026-03-05-gpt-5-4"
url: "https://postcutoff.com/e/2026-03-05-gpt-5-4/"
as_of: "2026-11-13T13:49:00+01:00"
date: "2026-03-05"
date_precision: day
category: model-release
importance: 4
confidence: high
status: [Confirmed]
sources: 5
editor: human editor
human_review: null
version: "2026-10-04"
---

As of: 2026-11-13 13:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/e/2026-03-05-gpt-5-4/

# OpenAI releases GPT-5.4 with native computer use

GPT-5.4 (March 5, 2026) unified GPT-5.3-Codex's coding strengths with general reasoning and built-in computer use, scoring 75% on OSWorld-Verified — above the 72.4% human baseline — with a 1.05M-token context; mini and nano versions followed on March 17.

## Key facts
- GPT-5.4 Thinking and GPT-5.4 Pro: March 5, 2026 in ChatGPT, API and Codex
- GPT-5.4 mini (also for free tier) and GPT-5.4 nano (API only): March 17, 2026
- OSWorld-Verified: 75% vs 47.3% for GPT-5.2 and 72.4% average human
- OpenAI: 33% fewer factual errors than GPT-5.2
- API: $2.50 input / $15 output per 1M tokens; cache read $0.25; input doubles to $5 above 272K tokens
- Context window 1,050,000 tokens; up to 128K output tokens
- Critics noted mini/nano API prices were about four times higher than GPT-5 equivalents

## What happened

OpenAI released GPT-5.4 as a single model combining reasoning, coding and agentic workflows, including native computer use (reading screenshots,
clicking, typing, navigating apps), and improved deep research.

## Why it matters

First OpenAI mainline model to beat the human baseline on OSWorld-Verified, marking computer-use agents as a mainstream capability.

## Your AI and this story

- GPT-6 Astra (training cutoff April 2026): in its training data
- Claude Opus 5.5 (training cutoff June 2026): in its training data
- Gemini 4 Hydrogen (training cutoff March 2026): in its training data
- Grok 4.7 (training cutoff May 2026): in its training data

## Sources

1. [Introducing GPT-5.4 (OpenAI)](https://openai.com/index/introducing-gpt-5-4/) (openai.com, official)
2. [GPT-5.4 model docs (OpenAI API)](https://developers.openai.com/api/docs/models/gpt-5.4) (developers.openai.com, docs)
3. [OpenRouter: GPT-5.4](https://openrouter.ai/openai/gpt-5.4) (openrouter.ai, docs)
4. [Cybersecurity News: OpenAI launches GPT-5.4](https://cybersecuritynews.com/gpt-5-4-launched/) (cybersecuritynews.com, press)
5. [Wikipedia: GPT-5.4](https://en.wikipedia.org/wiki/GPT-5.4) (en.wikipedia.org, discussion)

## Changes

- 2026-09-29 (filed): Created

## Related

- 2026-04-23: [OpenAI releases GPT-5.5 (codename Spud)](https://postcutoff.com/e/2026-04-23-gpt-5-5/index.md)
- 2026-02-05: [OpenAI releases GPT-5.3-Codex, a model 'instrumental in creating itself'](https://postcutoff.com/e/2026-02-05-gpt-5-3-codex/index.md)