YC-backed Relixir Announces Oversubscribed $2 Million Seed Round

Relixir, an inbound Engine for AI Search, led by Sean Dorje and Dennis Zax, has raised $2 million in a seed round from Y Combinator, z21 Ventures, 468 Capital, DG Daiwa Ventures, Vijay Krishnan (Founder of Turing), and others. The funding will help Relixir scale its platform that enables brands to generate qualified leads through ChatGPT and other AI-powered search engines.

Since its launch in early 2025, Relixir has generated over 10,000 inbound leads from AI search for 200 leading B2B and B2C companies, including Rippling, Airwallex, and HackerRank, across SaaS, healthcare, e-commerce, and fintech sectors.

Relixir monitors brand visibility across AI search engines like ChatGPT and Perplexity, then generates optimized content to position brands as authoritative answers for prospect queries. The funding will help scale its AI-powered inbound infrastructure for B2B companies as traditional search declines and AI-driven discovery grows.

Investor Jonas Kern of 468 Capital noted that Relixir stands out as the only enterprise-ready, end-to-end Generative Engine Optimization platform, combining visibility tools with proven impact on inbound pipeline. He added that its technology and dedicated support teams make it a trusted partner for global brands seeking to lead in AI search discovery.