Backtest Your Agent Against Yesterday's Web — Ryan Ahern, Exa
Exa offers version-controlled web search so AI agents can backtest against historical web states
“AI is now searching for information much more often than humans.”
Ryan Ahern from Exa argues that AI agents now perform web searches far more frequently and thoroughly than humans, creating demand for purpose-built agent search infrastructure. Exa's pitch is version-controlled web search that lets developers backtest agent behavior against historical web snapshots. The talk is an early-stage product pitch rather than a major industry announcement, with the core insight being that agent search patterns differ fundamentally from human search patterns.