Science
New Paper Tests Whether Chatbots Pick Ads Over Users. They Do, Up to 94% of the Time.
A team at Princeton and the University of Washington ran GPT 5.1, Grok 4.1 Fast, and Qwen 3 Next through conflict-of-interest scenarios designed to pit user welfare against sponsor revenue. All three compromised the user — and the rate varied with how expensive the user appeared to be.