Perplexity: two engineers and hundreds of AI agents built CobbleDB, replacing DynamoDB to save ~$100M/year

cameronstow · x · 2026-09-16

Perplexity published research on CobbleDB, its in-house key-value database serving web content for search, built as a replacement for AWS DynamoDB. The core infrastructure was built by two engineers plus hundreds of persistent, proactive AI agents over two months, and the migration is expected to save up to $100 million annually.

Related event: Perplexity Builds CobbleDB with Hundreds of AI Agents, Cutting p99 Latency to 24.2ms(10 posts)→

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