AI Systems Often Prefer AI-Written Content, Study Finds

A peer-reviewed PNAS study finds that large language models tend to prefer content written by other LLMs when asked to choose between comparable options.

The authors say this pattern could give AI-assisted content an advantage as more product discovery and recommendations flow through AI systems.

About The Study

What the researchers tested

A team led by Walter Laurito and Jan Kulveit compared human-written and AI-written versions of the same items across three categories: marketplace product descriptions, scientific paper abstracts, and movie plot…