Back to models

GPT-5.4 Pro

ECI#19
160
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 160 and ranks 19th of 240 tracked models. At the time of its release, it ranked 1st of 167 tracked models.

GPT-5.4 Pro vs select alternatives

DomainBenchmark
GPT-5.4 Pro
OpenAI
Mar. 5, 2026
Closed weights
OpenAI
Dec. 11, 2025
Closed weights
Anthropic
Feb. 5, 2026
Closed weights
Google DeepMind
Feb. 19, 2026
Closed weights
ECI scoreBest score 173
160157156156
Ranking#19#31#37#38
Conceptual reasoning
SimpleBenchBest score 95%
74%
57%
68%
80%
ARC-AGI-2Best score 95%
83%
54%
69%
77%
ARC-AGI-1Best score 99%
95%
91%
94%
98%
Games
Chess PuzzlesBest score 79%
59%
60%
21%
51%
Mathematics
82%
74%
66%
60%
FrontierMath Tier 4 (v2)Best score 100%
59%
46%
27%
27%
Science
Humanity's Last ExamBest score 55%
44%
n/a
34%
46%
GPQA DiamondBest score 97%
95%
n/a
91%
94%
World knowledge
SimpleQA VerifiedBest score 94%
46%
n/a
47%
74%

Model metadata