Primary Bias in AI Search: Why ChatGPT Already Has Favorites

Minimal illustration of an AI chat interface next to several brand icons, with one icon highlighted and a faint “BIAS” stamp reinforcing brand preference.

Before ChatGPT even runs a search, it already has opinions about which brands to trust. This “primary bias” is baked into the model from its training data. It heavily influences which websites get retrieved when you ask a question. For smaller brands trying to compete in AI search, understanding this bias is one of the […]