Instacart
RAG and search

From Scoring to Spelling: Rebuilding Ads Retrieval at Instacart

Our short summary of Instacart’s engineering write-up. The full story, with all the detail, is on their blog.

Read the full write-up on tech.instacart.com (opens in a new tab)

Problem

Users saw irrelevant ads, hurting shopping flow.

Solution

They replaced a scoring model with a generative transformer that predicts the next product token in a shopping session, improving contextual relevance.

Want the architecture, code and numbers? They’re in the original post.

Read the full write-up on tech.instacart.com (opens in a new tab)

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