Primer is a YC F25 startup building AI agents that run live, personalized product demos for SaaS and software companies. Instead of forcing prospects to book a 30-minute Zoom call with a human SDR or sit through a static recorded video, Primer agents walk each visitor through the product in real time, answer questions, handle objections, and adapt the path based on the visitor role and intent. The company was founded in 2025 by Chris Farestveit and a co-founder named Vinh and is based in Los Angeles with two employees.
The platform ingests existing demo videos, documentation, and product context, then generates interactive walkthroughs that can be embedded on a landing page, sent in an outbound email, or triggered inside an onboarding flow. Primer is positioned as an always-available sales and customer success representative that scales demo coverage to every visitor without adding headcount. Early customer marketing pages cite logos like Figma, Gamma, Polymarket, Lovable, and Relaw, and the team has reported roughly a ten times lift in landing page demo completion for early users.
Primer should not be confused with Primer.ai, the longstanding defense and intelligence natural language processing company, or with the math learning app of the same name. This Primer is purely focused on interactive AI-driven product demos for software companies. Pricing is currently contact-sales with a self-serve signup available at app.startprimer.com for early customers who want to try the agent on their own product.