OpenAI explains how it built ChatGPT's ad stack to keep ads separate from answers
rhiever · reddit · 2026-10-26
OpenAI published an engineering post detailing how it built ChatGPT's ad stack, with the core principle of keeping ads separate from model answers to preserve user trust while ensuring relevance. The post covers the architecture that combines conversation context with user signals to decide ad placement and matching — a key technical disclosure about ChatGPT's advertising-driven monetization.
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