ChatGPT Ads: 1,000+ Brands, Conversions Near 2x

Over one thousand brands are now advertising on ChatGPT through Criteo, and these AI-powered ads are nearly doubling conversion rates. This is a huge jump from the 1.5 times conversion rate reported just two months ago. Here's the thing: Criteo announced this milestone on May 5, 2026. They say the integration, which officially launched on March 2, 2026, is attracting new advertisers, not just shifting budgets. What's interesting is that OpenAI also just opened its self-serve Ads Manager to all US businesses today, offering new bidding options. Agencies like Tinuiti are already using this Criteo integration, helping their clients explore generative AI in commerce. This agency involvement is crucial for getting more brands on board. The bottom line: AI-driven advertising on platforms like ChatGPT is showing significantly better results, which means more effective marketing for businesses.