Relixir

Your autonomous GEO employee

San Francisco, United States · Founded 2024

Employees
1–10
Founded
2024
Business Model
B2B
Website
relixir.ai
Last Round
SeedNov 2025
Rounds
1

About

Relixir (YC X25) builds autonomous GEO (Generative Engine Optimization) software to help companies rank higher in AI-powered search results. Its Rex agent monitors AI visibility across all major LLMs, generates and publishes optimized content, and builds domain authority 24/7. Founded by Sean Dorje and Dennis Zax, Relixir raised a $2M seed round led by Y Combinator and Z21 Ventures.

Summary

Relixir is an Artificial Intelligence company based in San Francisco, United States, founded in 2024. Its most recent funding was a Seed round in Nov 2025. Investors include Y Combinator, Z21 Ventures Fund and 468 Capital.

Tech & App Stack

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Funding History

SeedSeed RoundNov 2025

Investors

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