Exa builds a neural search API that helps developers build AI applications with real-time web data.
$250MSeries C
A16z dropping $250M on a search API in 2026 signals that real-time web data access is now table-stakes for AI apps—the market has moved past static training data. Exa is likely using this to scale infrastructure, expand API coverage, and lock in enterprise customers before this becomes a commodity layer. If you're building any AI product that needs current information (research tools, agents, content platforms), you should be thinking about whether you're building on top of Exa or building your own data moat, because this round just made the former way more viable.