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GPT-4.1 mini

ECI#145
135
OpenAI
Apr. 14, 2025
Closed weights

GPT-4.1 mini is a closed-weights model from OpenAI, released April 14, 2025. It has an ECI score of 135 and ranks 145th of 260 tracked models. At the time of its release, it ranked 16th of 126 tracked models.

GPT-4.1 mini vs select alternatives

DomainBenchmark
GPT-4.1 mini
OpenAI
Apr. 14, 2025
Closed weights
o1-preview
OpenAI
Sep. 12, 2024
Closed weights
o1-mini
OpenAI
Sep. 12, 2024
Closed weights
Magistral Small 1.0
Mistral AI
Jun. 10, 2025
Open weights
ECI scoreBest score 167
135135136133
Ranking#145#146#141#152
Conceptual reasoning
ARC-AGI-2Best score 95%
0%
n/a
1%
0%
ARC-AGI-1Best score 99%
4%
18%
14%
5%
Mathematics
MATH Level 5Best score 98%
87%
82%
89%
n/a
OTIS Mock AIME 2024-2025Best score 100%
45%
31%
47%
30%
Science
GPQA DiamondBest score 96%
66%
50%
62%
56%
Software engineering
Aider PolyglotBest score 88%
32%
n/a
33%
n/a
WeirdML (v2)Best score 94%
38%
48%
36%
n/a

Model metadata

General
OrganizationOpenAI
Release dateApr. 14, 2025
Model accessibilityClosed weights
CountryUnited States of America
Knowledge cutoff2024-05-31
Provider notesIntroducing 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$0.40 / 1M tokens
Output price$1.60 / 1M tokens
Training
ParametersUnknown
Training computeUnknown
Training hardwareUnknown
Training timeUnknown
Training dataset sizeUnknown