Polar, the AI-powered Chromium browser that automates browser-based knowledge work via natural language commands, has raised $5.7M in seed funding led by Madrona Venture Group. The product executes multi-hour workflows across research, sales, recruiting, and operations on users' authenticated sessions. The round signals strong conviction in agent-native browsers for knowledge workers.
AI Agents Move Beyond Chat Assistants
The timing aligns with a wave of AI browser investments. Perplexity Comet received backing as part of Perplexity's $200M round at a $20B valuation in September 2025. Dia from The Browser Company was acquired by Atlassian for $610M after raising $128M. Polar's approach focuses on autonomous task execution rather than passive assistance.
Knowledge Workers Face Repetitive Browser Tasks
Browser-based work dominates knowledge roles in sales, recruiting, and research. Current tools require manual repetition or fall short on long-horizon autonomy. Polar claims 4.5 million actions executed in its first seven months and tasks running over 15 hours without intervention, per its product updates.
Agent-Native Browser Executes Tasks End-to-End
Polar was built as a full Chromium fork after an earlier Electron version proved insufficient for authenticated sessions and complex UI interactions. It scores 98.0 on the Odysseys benchmark, outperforming GPT-5.4 at 60.8 and Claude Opus 4.6 at 44.5. Scheduled workflows and a templates library enable recurring automation.
"Engineers got a transformative moment from tools like Claude Code, and most knowledge workers are still waiting for theirs. Their work lives in the browser, and Kevin, Vishaal, and Howard built the first agent that can operate there. That is why we led the round." — Sabrina Albert, Madrona
Mission Capital Validates Applied AI Thesis
Madrona led the round after raising $770M specifically for Applied AI. The firm previously backed Anthropic, Runway, and Modal Labs. Angels include former GitHub CEO Thomas Dohmke, Modal CEO Erik Bernhardsson, and Etched co-founder Rob Wachen, providing direct ties to AI infrastructure and developer tools.
AI Agent Market Expands Rapidly
The AI agents market is projected to grow from $7.84B in 2025 to $52.62B by 2030 at a 46.3% CAGR. Enterprise validation includes Atlassian's acquisition and Perplexity's valuation. Polar targets the knowledge worker segment where browser agents deliver recurring value.
Elite Team Brings Direct Competitor Experience
Founders hail from MIT, Y Combinator, Perplexity, Modal, and Jane Street. CEO Kevin Jiang previously worked on Perplexity's Comet browser, giving Polar insight into competitive limitations.
Product Momentum Builds Through Referrals
Polar launched pricing with tiers from free to $100/month and reports growth largely via customer referrals. A Windows version is in beta, and SOC 2 compliance is underway.