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GPT-5.4

Name: GPT-5.4
Author: OpenAI

by OpenAI

GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for.

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Models

GPT-5.4

Added 10 July 2026

#openai

Overview

GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for...

How to use / API access

Call via OpenRouter with model id `openai/gpt-5.4`.

openrouter · openai/gpt-5.4 Docs

OpenRouter id: openai/gpt-5.4

Benchmarks

Intelligence Index (artificial-analysis) : 51.4 index
Coding Index (artificial-analysis) : 71.1 index
Agentic Index (artificial-analysis) : 41.1 index
Design Arena 3d (other) : 1176 elo · #52
Design Arena asciiart (other) : 1244 elo · #11
Design Arena codecategories (other) : 1255 elo · #30
Design Arena dataviz (other) : 1274 elo · #20

Notes

GPT-5.4 is listed in the EDNA Models directory from the OpenRouter catalogue.

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