Bluejay: AI Agent Testing Startup Secures $4 Million in Seed Funding

Earlier this year, two 23-year-old engineers, Rohan Vasishth and Faraz Siddiqi, left their high-profile jobs at Amazon and Microsoft to launch Bluejay, an AI agent-testing startup. In just a few months, they successfully raised $4 million in seed funding, backed by prominent investors including Y Combinator, Floodgate, Peak XV, and Homebrew.

Based in San Francisco, Bluejay specializes in quality assurance for AI agents, with a strong focus on voice agents. The company uses synthetic customers to stress-test AI systems, simulating diverse scenarios involving different languages, accents, background noise, and personalities. This allows them to replicate a month's worth of interactions in mere minutes, providing rapid and comprehensive testing solutions.

Vasishth shared his motivation for leaving his first job out of college, emphasizing the rapid evolution of AI. "I don't need to stay here for six years to learn about it," he said. "In fact, I will learn about it probably faster by just doing it." The duo, who graduated from Y Combinator's spring 2025 batch, are building the company from a San Francisco hacker house, embodying a super scrappy attitude with lighthearted branding, including a mascot and grassroots marketing efforts like handing out flyers at conferences.

Bluejay's name is inspired by birds that warn each other of danger, reflecting their role in repeatedly pinging agents to test and monitor performance. The funding will be used to hire developers, researchers, and salespeople to scale their operations.

While Bluejay operates in a competitive space with companies like Braintrust, Arize AI, and Galileo also focusing on AI QA, their unique approach and rapid funding success set them apart.

Here's a glimpse into the pitch deck that helped them secure their investment: