OpenAI's top-tier model ranking ECI 140. solid benchmark performance. strong intelligence. Open weights available.
Metrics
ECI Score139.761
Epoch Capabilities Index score
ECI Normalized88
Normalized ECI score (0-100)
Context Window128,000
Maximum input token capacity
Training Compute4.9e24 FLOP
Total compute used during training
Score Breakdown
code
20%88
Code generation, understanding, and debugging
math
20%87
Mathematical reasoning and problem solving
reasoning
15%88
Multi-step logical reasoning
intelligence
30%88
Overall reasoning and task completion ability
Compatibility(2)
Sources(2)
Developed by
OpenAIBenchmark Performance
Compare ModelsEpoch Capabilities Index
139.8/ 155
| Dimension | Score |
|---|---|
| Intelligence | 88.0 |
| Reasoning | 88.0 |
| Math | 87.0 |
| Code | 88.0 |
| Overall | 88 |
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Data: Epoch AI (CC-BY 4.0)