VentureBeat, Monday, March 16th, 2026
How Linkedin Replaced Five Feed Retrieval Systems With One LLM Model, At 1.3 Billion-User Scale
LinkedIn's feed reaches more than 1.3 billion members - and the architecture behind it hadn't kept pace. The system had accumulated five separate retrieval pipelines, each with its own infrastructure and optimization logic, serving different slices of what users might want to see.
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