OpenAI has moved ChatGPT Ads from an early US pilot toward a broader self-serve advertising platform. On May 5, 2026, the company opened Ads Manager to all US advertisers and added cost-per-click bidding alongside its existing CPM buying model. The change gives advertisers a more familiar way to manage spend, but ChatGPT Ads remain fundamentally different from search advertising: relevance is guided by conversation context and advertiser-provided context hints, not exact-match keywords or demo...