Best AI models, ranked by capability
Ranked by Epoch AI's Capabilities Index (ECI), an aggregate score of each model's measured capability across standardized evaluations.
Ranked by the Epoch Capabilities Index (ECI) — Epoch AI’s composite intelligence score.
Frequently asked questions
What is the best AI model for overall?
Claude Fable 5 (Anthropic) currently ranks first for overall on Model Beat, followed by GPT-5.5 Pro and GPT-5.5. Ranked by Epoch AI's Capabilities Index (ECI), an aggregate score of each model's measured capability across standardized evaluations.
Which is the most affordable strong overall model?
Among the top-ranked overall models, Gemini 3.5 Flash is the cheapest at $1.50 per million input tokens.
How are these overall rankings calculated?
Ranked by Epoch AI's Capabilities Index (ECI), an aggregate score of each model's measured capability across standardized evaluations.
Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.