Benchmarks / Composite
Epoch Capabilities Index
Epoch AI's Capabilities Index: a single score per model fitted across many benchmarks (item-response model), so scores are comparable across models tested on different sets. About 100 is GPT-4.1 and about 150 is a current frontier model. Data: Epoch AI, CC BY.
Epoch Capabilities Index
Higher is better · best effort per model
full table below