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o4-mini

by OpenAI
Efficient Paid API Multimodal 🏆 Ranked #2 of 85
91.5
Overall Score
out of 100
About

OpenAI's compact reasoning model achieving near-o3 performance at a fraction of the cost. o4-mini uses extended chain-of-thought and achieves exceptional results on mathematics, science, and coding — making advanced reasoning economically accessible.

Key Metrics
Context Window
200K
tokens
Avg Response
2200
milliseconds
Input Cost
$1.1
per million tokens
Output Cost
$4.4
per million tokens
Arena ELO
1370
Chatbot Arena rating
MT-Bench
9.0
out of 10
Benchmark Scores
MMLU
90.8%
HumanEval
95.8%
MATH
95.9%
GPQA
83.0%
MT-Bench
90.0/10
Capability Profile
Strengths & Limitations
Strengths
✓ Near-o3 reasoning ✓ Exceptional MATH scores ✓ Strong GPQA ✓ Much cheaper than o3 ✓ Multimodal
Limitations
⚠ Slower than standard models ⚠ Less natural conversation style ⚠ Verbose on simple tasks
Ideal Use Cases
Scientific reasoning Competitive programming Mathematics Cost-efficient research STEM tasks
Model Details
Provider OpenAI
Released 2025-04-16
Type Paid API
Multimodal Yes
Tier Efficient
Global rank #2 / 85
Pricing (USD)
Input tokens $1.1/M
Output tokens $4.4/M
Per 1,000 tokens ≈ $0.0011 input / $0.0044 output
All Benchmarks
MMLU 90.8%
HumanEval 95.8%
MATH 95.9%
GPQA 83.0%
MT-Bench 9.0/10
Arena ELO 1370
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