AI language models have favorite names, and we mapped them [R]

Short summary

Research reveals that language models like Claude generate text with strong, model-specific biases in character naming. Elena Vasquez and Marcus Chen consistently appear together across multiple websites—sometimes as experts, podcast hosts, thriller protagonists, or authors. These correlated name ensembles create a detectable signature of AI-generated content.

• •LLMs show strong, model-specific preferences for character names like Elena Vasquez and Marcus Chen
• •These names appear together across dozens of unrelated websites in various roles
• •This signature pattern enables detection of AI-generated content

Generated with AI, which can make mistakes.