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LLM Ranking: 257 Language Models on One Scale

Which language model is the most capable overall? 257 LLMs ranked by the Epoch Capabilities Index, plus the best open-weights models, the best model of each organization and the leaders on 15 benchmarks.

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The four areas

340 language models compared

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  1. 1Claude Opus 5.5Anthropic · ECI 167.3
  2. 2GPT-6 AstraOpenAI · ECI 166.4
  3. 3GPT-6.1 SolOpenAI · ECI 166.1
  4. 4Claude Sonnet 5.5Anthropic · ECI 165.0
  5. 5Claude Fable 5.1Anthropic · ECI 164.7

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124 AI tools compared

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