# Home Made CobbleDB Replaces DynamoDB at Perplexity to Cut Query Latency 5x and Reduce Cloud Storage

> **Publication**: aitalky (Independent AI Journalism)
> **Canonical Citation URL**: https://aitalky.vercel.app/news/home-made-cobbledb-replaces-dynamodb-at-perplexity-to-cut-query-latency-5x-and
> **Original Source**: [InfoQ AI/ML](https://www.infoq.com/news/2026/09/cobbledb-perplexity/)
> **Author**: Olimpiu Pop (undefined)
> **Published Date**: Friday, September 25, 2026
> **Category**: RESEARCH
> **Tags**: AI, InfoQ AI/ML, research

## Executive Summary
Perplexity has migrated its search infrastructure from Amazon DynamoDB to CobbleDB, an internally developed key-value store in Rust. This change reduced latency and costs associated with handling large document batches.



## Full Coverage
Perplexity has migrated its search infrastructure from Amazon DynamoDB to CobbleDB, an internally developed key-value store in Rust. This change reduced latency and costs associated with handling large document batches

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