A label-free behavioral map of 32 LLMs shows stable family clusters, gpt-2 as a global outlier, and decreasing cross-family distances over time; a token-level MMD check and three alternative encoders reproduce the patterns.
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Mapping and Measuring the Behavioral Evolution of Large Language Models
A label-free behavioral map of 32 LLMs shows stable family clusters, gpt-2 as a global outlier, and decreasing cross-family distances over time; a token-level MMD check and three alternative encoders reproduce the patterns.