// Hacker Noon · 15 January 2026

Would I Use LLMs to Rebuild Twitter's Dynamic Product Ads? Yes and No!

Twitter’s Dynamic Product Ads system was built to match users to products they are most likely to buy. The system used product and user embeddings with classic ML models to serve personalized ads at Twitter’S scale. The approach was very textbook (for 2022 at least). Would this approach have been di...

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