GPT-4.1 | Epoch AI

ECI#129

137

OpenAI

Apr. 14, 2025

Closed weights

GPT-4.1 is a closed-weights model from OpenAI, released April 14, 2025. It has an ECI score of 137 and ranks 129th of 253 tracked models. At the time of its release, it ranked 9th of 126 tracked models.

GPT-4.1 vs select alternatives

Domain	Benchmark	GPT-4.1 OpenAI Apr. 14, 2025 Closed weights	GPT-4.5 OpenAI Feb. 27, 2025 Closed weights	o3-mini OpenAI Jan. 31, 2025 Closed weights	Grok 3 xAI Apr. 9, 2025 Closed weights
	ECI scoreBest score 167	137	137	140	138
	Ranking	#129	#130	#111	#123
Conceptual reasoning	ARC-AGI-2Best score 95%	0%	1%	3%	0%
	ARC-AGI-1Best score 99%	6%	10%	35%	6%
Games	Chess PuzzlesBest score 72%	6%	n/a	17%	n/a
Mathematics	FrontierMath Tiers 1-3 (v2)Best score 94%	6%	n/a	19%	n/a
	MATH Level 5Best score 98%	83%	79%	96%	89%
	OTIS Mock AIME 2024-2025Best score 100%	38%	38%	77%	56%
Science	Humanity's Last ExamBest score 55%	5%	5%	n/a	n/a
	GPQA DiamondBest score 96%	67%	69%	77%	68%
World knowledge	SimpleQA VerifiedBest score 76%	31%	n/a	15%	n/a

Model metadata

General
Organization	OpenAI
Release date	Apr. 14, 2025
Model accessibility	Closed weights
Country	United States of America
Knowledge cutoff	2024-05-31
Provider notes	Introducing GPT-4.1 in the API: A new series of GPT models featuring major improvements on coding, instruction following, and long context—plus our first-ever nano model.

Pricing
Input price	$2 / 1M tokens
Output price	$8 / 1M tokens

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