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o4-mini

Parameters

-

Context Length

128K

Modality

Text

Architecture

Dense

License

Proprietary

Release Date

10 Feb 2026

Knowledge Cutoff

-

Technical Specifications

Attention Structure

Multi-Head Attention

Hidden Dimension Size

-

Number of Layers

-

Attention Heads

-

Key-Value Heads

-

Activation Function

-

Normalization

-

Position Embedding

Absolute Position Embedding

o4-mini

o4-mini brings efficient reasoning capabilities to cost-sensitive applications. More compact than o3 series while maintaining solid performance on reasoning tasks. Offers excellent balance of reasoning capability and cost-effectiveness, making deliberative AI accessible for broader use cases. Performs well on mathematics, coding challenges, and structured problem-solving. Ideal for applications requiring thoughtful analysis at scale.

About o4

The o4-mini series brings efficient reasoning capabilities to smaller form factors, making advanced deliberative AI more accessible. Optimized for cost-effective deployment while maintaining strong performance on reasoning benchmarks, ideal for applications requiring thoughtful analysis at scale.


Other o4 Models
  • No related models available

Evaluation Benchmarks

Rank

#42

BenchmarkScoreRank

0.72

8

Graduate-Level QA

GPQA

0.81

20

Professional Knowledge

MMLU Pro

0.81

29

Rankings

Overall Rank

#42

Coding Rank

#35

O4-mini: Model Specifications and Details