TL;DR: As retrieval augmented generation took off in 2023, Exa’s embedding-based search index was positioned as a core developer API for building AI applications with access to real-time data. Sacra estimates Exa hit $10M annualized revenue in September 2025, up ~11x YoY from ~$880K, raising an $85M Series B at a $700M valuation from Benchmark. For more, check out our full report and dataset on Exa...