Karthik Gopalratnam
Member of Technical Staff; monetisation engineering
OpenAI
Karthik Gopalratnam is a member of technical staff; monetisation engineering at OpenAI. They co-authored OpenAI’s October 2026 engineering explanation of ChatGPT’s advertising architecture, covering ad selection, relevance and the separation between advertising and answer generation.
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How ChatGPT selects ads: OpenAI’s architecture explained
OpenAI engineers explain how conversation context, relevance checks and auctions shape ChatGPT ad delivery, in a system separate from answer generation. A technical reference for understanding the platform, not a new advertiser setting.
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Contribution ranking & points 10 pts
Contribution points
10 contribution points · 1 credited works · #113 in the Lifetime contribution ranking.
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