# GPT-5.4

> **TL;DR.** GPT-5.

- **Category:** AI / Language Models / Frontier Models
- **Stage:** rising
- **Age:** 103 days
- **Origin date:** 2026-03-05
- **First detected:** 2026-04-17
- **Canonical URL:** https://earlyterms.com/term/gpt-5-4
- **Sources:** 8 primary URLs

## Definition

GPT-5.4 is OpenAI's March 2026 frontier language model that unifies the Codex and GPT product lines into a single system, adding native computer-use capabilities, a 1-million-token context window, and configurable reasoning effort for the first time in the mainline GPT series.

OpenAI launched it on [March 5, 2026](https://openai.com/index/introducing-gpt-5-4/) alongside GPT-5.4 Pro and GPT-5.4 Thinking variants. It incorporates GPT-5.3-Codex's coding strengths, scores 75% on OSWorld-Verified computer-use benchmarks (surpassing the 72.4% human baseline), and reduces factual errors by 33% vs GPT-5.2 — making it the first GPT release explicitly positioned as an agentic coding workhorse.

## Analogy

Think of it as the GPT line's first native field agent — trained to click, scroll, and code, not just talk.

## Why it's emerging now

GPT-5.4 shipped March 5 as OpenAI's first model to exceed the human baseline on computer-use (75% OSWorld vs. 72.4% human), merge Codex coding capabilities into the mainline GPT, and open a 1M-token context window at $2.50/MTok input — catalyzing a benchmark arms race with Anthropic and Google that is still active in April 2026.

## Related terms

- *child:* GPT-5.5
- *competitor:* Claude Opus 4.6
- *competitor:* Claude Opus 4.7
- *competitor:* Gemini 3.1 Pro
- *parent:* GPT-5.3-Codex
- *related:* computer use
- *related:* agentic coding
- *related:* context engineering
- *related:* coding agents
- *related:* managed agents
- *related:* OpenAI Codex CLI
- *related:* context rot

## Sources

1. [OpenAI — Introducing GPT-5.4 (launch announcement, Mar 5, 2026)](https://openai.com/index/introducing-gpt-5-4/)
2. [TechCrunch — OpenAI launches GPT-5.4 with Pro and Thinking versions](https://techcrunch.com/2026/03/05/openai-launches-gpt-5-4-with-pro-and-thinking-versions/)
3. [Wikipedia — GPT-5.4](https://en.wikipedia.org/wiki/GPT-5.4)
4. [Hacker News — GPT-5.4 launch thread (1,019 pts, 805 comments)](https://news.ycombinator.com/item?id=47265045)
5. [Hacker News — Epoch confirms GPT-5.4 Pro solved frontier math problem (480 pts)](https://news.ycombinator.com/item?id=47497757)
6. [Epoch AI — Ramsey-style hypergraph problem solved by GPT-5.4 Pro](https://epoch.ai/frontiermath/open-problems/ramsey-hypergraphs)
7. [OpenRouter — GPT-5.4 model specs and pricing](https://openrouter.ai/openai/gpt-5.4)
8. [MindStudio — GPT-5.4 vs Claude Opus 4.6 vs Gemini 3.1 Pro benchmark comparison](https://www.mindstudio.ai/blog/gpt-54-vs-claude-opus-46-vs-gemini-31-pro-benchmarks)

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_Generated by EarlyTerms · https://earlyterms.com/term/gpt-5-4_