researchOctober 21, 2026·OpenAI Blog

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

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

Key Takeaways

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

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