Imprezia is a Y Combinator S25 startup positioning itself as the world's first AI ad network, providing advertising infrastructure built specifically for AI applications. The platform enables contextual brand integration directly into AI conversations and copilots, generating revenue that helps developers offset inference costs without interrupting the user experience. The company raised a pre-seed round in 2025 with backing from Pioneer Fund and other investors. Imprezia is based in San Francisco and was founded by Bishesh Khadka, a former Amazon Ads and Meta Ads engineer.