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

Source: https://openai.com/index/building-chatgpt-ad-stack
Published: 2026-10-21
Status: unreviewed source report

## Source excerpt (up to 25 words)

> 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.

## Review question

Check availability, model version, licensing, real task accuracy, rate limits and total cost. Provider benchmarks are not independent replication.

No independent proof check or claim of peer review.