AI advertising leads Cannes Lions 2026 as OpenAI courts the Croisette: On day one of Cannes Lions 2026, OpenAI courted advertisers as Criteo passed 2,000 brands on ChatGPT, shoppable TV spread, and Google reworked Smart Bidding. https://ppc.land/ai-advertising-leads-cannes-lions-2026-as-openai-courts-the-croisette/ #AIMarketing #CannesLions2026 #OpenAI #DigitalAdvertising #ChatGPT