Vapi has experienced rapid growth, generating millions in revenue within its first six months post-launch. Key industry clients include Mindtickle, Luma Health, Ellipsis Health, and Gestionadora de Créditos, spanning sectors like finance, healthcare, and travel.

In December 2024, Vapi.ai secured $20 million in Series A funding, with the round led by Bessemer Venture Partners. Other backers included Abstract Ventures, AI Grant, Y Combinator, Saga Ventures, and Michael Ovitz. The investment valued Vapi at approximately $130 million.