The company describes the system as LLM-powered and intended to interpret conversational intent when selecting ads.
According to the post, advertising is kept separate from ChatGPT answers rather than incorporated into the answer itself. OpenAI says the stack is designed to deliver ads it considers relevant at scale while preserving user trust. Its description centers on using conversational context to identify intent for ad selection, alongside a distinct ad-serving layer.
The publication is a company technical explainer, not a product specification or an independently audited result. It does not provide performance metrics, advertiser pricing, rollout dates, geographic availability, access requirements, targeting controls, or independent evidence that the stated trust and relevance goals are met. It also does not establish how the system performs across different conversations or user groups. Source: https://openai.com/index/building-chatgpt-ad-stack