GPT-5.4 Pro | Epoch AI

ECI#11

159

OpenAI

Mar. 5, 2026

Closed weights

GPT-5.4 Pro is a closed-weights model from OpenAI, released March 5, 2026. It has an ECI score of 159 and ranks 11th of 253 tracked models. At the time of its release, it ranked 1st of 193 tracked models.

GPT-5.4 Pro vs select alternatives

Domain	Benchmark	GPT-5.4 Pro OpenAI Mar. 5, 2026 Closed weights	GPT-5.3 Codex OpenAI Feb. 5, 2026 Closed weights	Claude Opus 4.6 Anthropic Feb. 5, 2026 Closed weights	Gemini 3.1 Pro Google DeepMind Feb. 19, 2026 Closed weights
	ECI scoreBest score 167	159	157	155	155
	Ranking	#11	#18	#27	#31
Conceptual reasoning	SimpleBenchBest score 82%	74%	n/a	68%	80%
	ARC-AGI-2Best score 95%	83%	n/a	69%	77%
	ARC-AGI-1Best score 99%	95%	n/a	94%	98%
Games	Chess PuzzlesBest score 72%	59%	n/a	17%	55%
Mathematics	FrontierMath Tiers 1-3 (v2)Best score 94%	82%	n/a	66%	60%
	FrontierMath Tier 4 (v2)Best score 100%	59%	n/a	27%	27%
Science	Humanity's Last ExamBest score 55%	44%	n/a	34%	46%
	GPQA DiamondBest score 96%	95%	n/a	91%	94%
World knowledge	SimpleQA VerifiedBest score 76%	46%	n/a	47%	74%

Model metadata

General
Organization	OpenAI
Release date	Mar. 5, 2026
Model accessibility	Closed weights
Country	United States of America
Knowledge cutoff	Unknown
Provider notes	Introducing GPT‑5.4

Pricing
Input price	$30 / 1M tokens
Output price	$180 / 1M tokens

Training
Parameters	Unknown
Training compute	Unknown
Training hardware	Unknown
Training time	Unknown
Training dataset size	Unknown