OpenAI launched its ChatGPT advertising pilot in early 2026, but results have been mixed. Around 25.94% of commercial prompts display ads, while approximately 14% of those ads have limited or no connection to the user’s query. Click-through rates range from 0.5% to 2%, and cost-per-click spans from under $3 to over $10. One advertiser spent $477 over six weeks, generating 370 clicks but zero conversions. Some partners still report customer acquisition costs 15.3% lower than paid search benchmarks, and the platform reportedly reached a $1 billion annualized revenue run rate in under 200 days.
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