Key stat: US advertisers will spend $25.9 billion on AI search ads in 2029—13.6% of all search ad spending, up from just 0.7% in 2025, according to EMARKETER's May forecast.

Beyond the chart:

• 38% of US adults use AI search summaries for half or more of searches, according to February data from YouGov.
• 29% of non-AI users identified a preference for dealing with real people over AI as the reason they never use AI search tools, per December 2024 data from Pearl.

Use this chart: Marketers can use this data to futureproof their search efforts by jumpstarting AI search initiatives now in preparation for widespread adoption. They can also begin to identify best practices for how to reach target audiences in AI search channels.

Related EMARKETER reports:

• B2B SEO and the Shift to AI-Driven Search (EMARKETER subscription required)
• Navigating the AI-Powered Path to Purchase (EMARKETER subscription required)