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How we built ChatGPT’s novel ad stack for user trust and relevance

OpenAI Blog • October 21, 2026 at 3:00 AM ET

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Learn how OpenAI built ChatGPT’s LLM-powered ad stack to understand conversational intent, keep ads separate from answers, and deliver relevant ads at scale.

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Source: OpenAI Blog · Summarized by HeadlinesBriefing

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