Optable's Vlad Stesin on Agentic Advertising, Workflow Automation, and What Comes Next | Cannes 2026 A year ago at Cannes, agentic advertising was a concept people were still getting their heads around — the "wow moment" of AI was largely confined to question-and-answer interactions within a chat interface. That's changed substantially, and Optable CEO and Co-Founder Vlad Stesin has a clear view of what real progress looks like versus what's still buzzword. At Cannes Lions 2026, AdExchanger Managing Editor Allison Schiff sat down with Stesin to talk about what's actually shifted in the agentic landscape over the past 12 months, what Publicis's acquisition of LiveRamp signals about where value is consolidating, and what agent-ready infrastructure looks like in practice.