Simulithic
Simulithic is a YC Fall 2026 (F26) company. Based in San Francisco, CA, USA. Team of 2.
About Simulithic
Summary
Simulithic builds autonomous user simulation for production monitoring. It learns real user journeys and continuously runs agent-based swarms across the actual devices, browsers, account states, and network conditions those users are on, catching broken flows, third-party failures, and regressions the moment they occur. It replaces manual QA on production and scripted end-to-end tests that miss the edge cases real users hit.
Business model
A usage-based or tiered pricing model, as indicated by a public pricing page.
Go-to-market
Engineering and product teams at B2B software companies are the buyers; they start by booking a 20-minute call with the founders, making it a sales-assisted, founder-led motion.
From the Y Combinator listing
User simulations for production monitoring.
Simulithic continuously uses your production product like your real users do. We learn representative user journeys and run user simulations across different devices, browsers, account states, and environments to find failures that traditional scripted end-to-end tests miss.
Facts
- B2B / B2B -> Engineering, Product and Design
- San Francisco, CA, USA
- 2
- Active
- Early
Founders (2)
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