Polar launches AI-first browser for knowledge workers after $5.7M seed round

Polar has launched an AI-first browser aimed at knowledge workers and raised a $5.7 million seed round led by Madrona. The startup is led by CEO Kevin Jiang, who previously worked at Perplexity on Comet. The product arrives as AI browser efforts move away from broad consumer search replacement and toward practical automation.

AI browsers were a major theme in 2025, with companies trying to bake AI into the interface people use to browse the web. The focus has since shifted to agents and automation, with startups building browsers that can take a more agentic approach. Polar is positioning itself around knowledge work, where browser-based agents may have clearer recurring value than occasional consumer tasks.

Polar users can schedule workflows, save prompts, and assign tasks to agents based on their open tabs. The company says the browser is designed to be usable by non-technical users and can support work across sales, recruitment, marketing, research, and business operations. The browser is free to use with a few daily credits for AI tasks, while higher credit limits are available through subscription plans starting at $20 per month.

Polar says many current users rely on its browser for automating tasks while continuing to use another browser as their daily driver. The startup’s goal is to become an automation tool, and it believes the browser is currently the best path for that. Madrona partner Sabrina Albert highlighted the challenge of building reliable agentic work on the open, logged-in web, where browser access can provide useful context across services users already use.