Pinterest
RAG and search

Evolving Pinterest’s Embedding Retrieval Platform

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

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

Problem

Embedding search was becoming too expensive and slow as the number of items grew into tens of billions.

Solution

They upgraded their internal search platform to use quantized integer vectors, hybrid queries and more flexible indexing, cutting memory use while keeping latency low.

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

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

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