ChatGPT Ads Trail Google Search in Revenue
Advertisers testing ChatGPT placements should benchmark them against search spend before shifting budget.
Updated on Nov. 3, 2026 in Advertising
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A study by Frankfurt School of Finance & Management and WU Vienna found that advertising on ChatGPT delivers less economic value than Google search ads. Advertisers running ChatGPT campaigns see weaker returns, which matters for any business weighing AI platforms as a paid channel.
Why it matters
The gap in returns affects how much budget advertisers should move from established search platforms to conversational AI tools. OpenAI is weighing advertising revenue against user trust ahead of a potential IPO, so the results put pressure on its ad pricing and targeting.
Among 102 advertisers with complete revenue data, 82% recorded no purchases from ChatGPT ads. The study covered nearly ten billion website visits and found ChatGPT referred six to eight percent fewer visitors to online shops through unpaid recommendations after advertising was introduced.
The players
Frankfurt School of Finance & Management
A German business school offering finance and management degrees and research in economics and financial markets.
WU Vienna
The Vienna University of Economics and Business, an Austrian public university known for business and economics research.
OpenAI
The developer of ChatGPT, which is weighing advertising revenue against user trust ahead of a potential IPO.
The details
Advertising effectiveness was measured using data from 387 websites, including the 102 with complete revenue data. At publicly reported ChatGPT ad prices, Google search advertising delivered 6.6 times better revenue per advertising dollar. The researchers also found that providing free ChatGPT access costs about $5 per user annually, while projected advertising revenue currently amounts to around $1 per user.
Timeline
June 2025: Start of the study's data collection period.
August 2026: End of the study's data collection period.
November 3, 2026: Study findings published.
Market Landscape
The results place ChatGPT advertising behind Google search ads, the established benchmark for paid search returns. The comparison suggests conversational AI platforms must significantly raise the economic value of their ad inventory to compete for performance-focused advertising budgets.
Marketing teams should compare revenue per advertising dollar across channels before shifting budget toward AI-based ad placements. Operators running ChatGPT ads should track conversion rate and revenue per visit against their search spend over the next quarter.
The takeaway
Advertisers should treat ChatGPT ads as an unproven channel and benchmark them against search spend using their own conversion data. Review the full study's revenue-per-dollar figures before committing additional budget to conversational AI placements.
Further reading
For more on how paid ad channels compare on return, explore our Advertising coverage.
More information
Read the Full study on ChatGPT advertising effectiveness for the complete methodology and data.
Source note: This article includes information reported by Informationdienst Wissenschaft e.V. - idw.
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