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cold-start-problem
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October 21, 2026
•5 min read
Meta's GenRecs tokenization solves the cold-start problem advertisers didn't know they were paying for
Meta's new semantic tokenization approach replaces per-item ad IDs with shared vocabulary tokens, eliminating the cold-start penalty for new products and cutting recommendation system memory by over 90%. The shift means your newest campaign inherits what the model already knows, rather than starting from zero.
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