OpenAI next-gen reasoning model with 200K context. Record ARC-AGI scores. Exceptional reasoning (99/100) and math (98/100). Best for research and complex problem-solving.
Metrics
Performance
ECI Score148.789
Epoch Capabilities Index score
ECI Normalized95
Normalized ECI score (0-100)
Context Window200,000
Maximum input token capacity
Info
ProviderOpenAI
Organization that created the model
CountryUSA
Model development country
Model Accessibilitynull
Access method (API, download, etc.)
Open WeightsNo
Model weights publicly available
Open SourceNo
Open source availability
Epoch Model IDo3-pro-2025-06-10_high
Epoch AI benchmark identifier
Score Breakdown
code
20%100
Code generation, understanding, and debugging
math
20%100
Mathematical reasoning and problem solving
reasoning
15%100
Multi-step logical reasoning
intelligence
30%95
Overall reasoning and task completion ability
instruction following
98
Compatibility(4)
Sources(3)
Developed by
OpenAIBenchmark Performance
Compare ModelsEpoch Capabilities Index
148.8/ 155
| Dimension | Score |
|---|---|
| Intelligence | 95.0 |
| Reasoning | 100.0 |
| Math | 100.0 |
| Code | 100.0 |
| Instruction Following | 98.0 |
| Overall | 95 |
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Data: Epoch AI (CC-BY 4.0)