Kernel builds fast cloud browsers for AI agents — 200K browsers spun up, 1,000% revenue growth month-over-month
Sep 10, 2025 with Raf Garcia
Key Points
- Kernel has spun up 200,000 cloud browsers in three months with revenue growing 1,000% month-over-month, positioning browser infrastructure as the critical layer for AI agent workflows.
- Founder Raf Garcia, a repeat YC founder whose prior company Clever sold for $500 million, argues AWS is years behind on performance optimizations and positions Kernel as a specialist play similar to PlanetScale versus RDS.
- The six-person startup is moving upmarket from the YC network into Fortune 500 enterprise deals as demand shifts from legacy QA and testing use cases toward AI agents in healthcare, fintech, and complex automation.
Summary
Kernel provides cloud-hosted browsers built for AI agents, letting them interact with websites the way humans do. Raph Garcia, the founder, is a repeat YC entrepreneur whose prior company Clever was acquired for $500 million. Clever started with browser automation to pull data from student information systems, which informs Kernel's founding logic: browser automation has always been a legitimate infrastructure problem, and LLMs made it vastly more valuable.
Kernel has spun up 200,000 browsers in the last three months, with revenue growing 1,000% month-over-month and usage up 400%. The company started selling into the YC network of roughly 5,000–6,000 companies and is now closing Fortune 500 enterprise deals. The team has six people.
Speed is the core product bet. Garcia previously worked as a quant at a high-frequency trading firm and positions Kernel as infrastructure specialists willing to pursue technical optimizations that a cloud generalist like AWS won't match. His reference point is PlanetScale versus RDS: Amazon has a product, but a focused specialist can dominate on performance and win larger customers. He argues AWS is years behind on the specific optimizations Kernel is pursuing.
Before LLMs, cloud browsers were mostly used for QA and headless testing. AI agents changed the demand profile entirely, opening up use cases in healthcare, fintech, and QA at a scale and complexity that legacy headless browser tooling was not designed to handle.
Kernel is in a funding round. Terms have not been disclosed.