Epoch AI
@EpochAIResearch
Investigating the trajectory of AI for the benefit of society.
Joined May 2022
0 Following 78.1K Followers
Claude Opus 5.5 has taken the top spot on the Epoch Capabilities Index (ECI) with a score of 167, narrowly ahead of GPT-6 Astra.
Claude Sonnet 5.5 has roughly matched Claude Fable 5.1 (165).
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