Flint announced today it has raised $5 million in seed funding led by Accel, with participation from Sheryl Sandberg's Sandberg Bernthal Venture Partners and returning investor Neo. The platform enables companies to create autonomous websites that generate and optimize pages without manual intervention.
The company was founded by Michelle Lim, the first engineer and head of growth at Warp, and Max Levenson, a former engineering leader at autonomous vehicle startup Nuro. Both bring experience from scaling complex technical systems to the challenge of reimagining how websites operate.
The way people and AI systems find information online is changing fast. ChatGPT and similar AI agents now browse the web on behalf of users, creating new demands for how companies present information. Growth teams need pages that answer every possible customer question to remain visible, but creating even a single page typically requires months of coordination across different tools and teams.
"It's time to kill the traditional website," said Michelle Lim, co-founder and CEO of Flint. "We're moving from a world of websites as static assets to one where they're autonomous agents."
Flint is working toward a future where websites respond dynamically to market conditions and visitor behavior. The vision includes a site that automatically creates a competitor comparison page when a rival launches a new product, or one that adapts its content when a healthcare executive visits to highlight relevant case studies. When AI agents arrive, the website would communicate directly using agent-to-agent protocols.
"Your website is either autonomous or obsolete," continued Lim.
While full autonomy remains a longer-term goal, Flint is already producing live pages for customers including Cognition, Modal, and Graphite. These companies use the platform to create comparison pages, advertising landing pages, and AI-optimized content.
The process is straightforward. Customers upload a content brief and provide a URL to their existing website. Flint analyzes their design system and generates fully coded pages that publish directly on their root domain. Early results show strong performance: top rankings in SEO and AI-powered search, 50% higher conversion rates on Google Ads campaigns, and hundreds of thousands of dollars in new pipeline months ahead of original timelines.
The founders' backgrounds inform their approach to the problem. Lim scaled Warp from zero to hundreds of thousands of developers, but found the website became her biggest obstacle. Multi-team coordination created weeks-long delays for simple changes. After working on Warp's AI agents, she began imagining websites that could build themselves.
Levenson spent years at Nuro solving simulation and infrastructure challenges to make autonomous vehicles work. The connection between self-driving cars and self-managing websites became clear: both need to process real-time data streams, make decisions quickly, and take action without human intervention.
The seed funding will support new hires in design and applied AI engineering. Flint has been operating quietly but has already accumulated a substantial waitlist. The company plans to expand access to its invite-only beta in the coming months.
"The web is being disrupted by AI and companies need to adapt their websites quickly to remain effective marketing and acquisition channels," said Sheryl Sandberg, co-founder of Sandberg Bernthal Venture Partners. "Flint is solving this challenge, shaping discoverability and online advertising for the AI era."
The funding round attracted investors with experience backing technical infrastructure companies. Dan Levine, partner at Accel, whose portfolio includes Scale, Vercel, and Sentry, sees Flint addressing a real gap in the market.
"Marketers are gravely underserved by outdated tools. Flint finally gives them AI superpowers to compete," said Levine.
Ali Partovi, founder and CEO of Neo, has tracked the team's progress for years. Neo previously invested in Flint and participated again in this round. Partovi's investments include Cursor, Kalshi, and Bluesky.
"We've known Michelle as an outlier since 2019, and the whole Flint team is cracked," said Partovi. "I'd bet on this team in a heartbeat."
The company continues to refine its platform as AI transforms how people and machines discover information online. For growth teams struggling with slow website updates and fragmented tools, Flint offers a different approach: websites that build and improve themselves.
