Conversational and agent-in-ad placements face questions about conversion and incrementality

Google’s AI Mode rollout adds international and multiturn ad placements, but reporting does not separately reveal their performance. Coverage of ChatGPT Ads likewise raises conversion and measurement questions; visibility metrics would add signals, not prove effectiveness. Priceline’s Penny in Snapchat Sponsored Snaps is a concrete agent-in-ad experiment, but company-reported conversion advantages do not establish incremental impact.