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

- Source: OpenAI News
- Published: 2026-10-21T07:00:00+00:00
- Category: Tech
- Original: https://openai.com/index/building-chatgpt-ad-stack
- Canonical: https://groundlevelnews.com/story/how-we-built-chatgpt-s-novel-ad-stack-for-user-trust-and-relevance-edef63/

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.

_Ground Level News shows a short summary only; the full article and all rights belong to OpenAI News._