Backed by Khosla Ventures and Hanabi Capital, the startup wants to replace manual website experimentation with autonomous AI agents that design, test and deploy improvements.
Coframe has raised $25 million in a Series A co-led by Khosla Ventures and Hanabi Capital, bringing its total funding to $35 million.
The financing, announced November 9, includes investments from technology executives associated with OpenAI, Anthropic and Google DeepMind.
The San Francisco startup is building a system that allows websites, landing pages and advertisements to continuously improve their own performance.
Its founder and CEO, Josh Payne, describes the concept as the living internet.
Replacing Manual A/B Testing
Companies traditionally optimize websites through a combination of designers, developers, marketing teams and analytics specialists.
Teams identify opportunities, create alternative layouts, launch A/B tests and analyze conversion rates before choosing a winning version.
Coframe wants AI agents to manage much of that process.
Its platform can generate new website variations, test them against real visitor behavior and deploy versions that perform better.
Instead of relying exclusively on manually scheduled experiments, the system continually evaluates the effectiveness of digital experiences.
Coframe is also developing personalization capabilities that adapt content based on visitor context.
A Foundation Model for User Behavior
The company says its technology includes a proprietary model trained on patterns of user behavior across hundreds of millions of sessions each month.
That model helps its agents evaluate how visitors interact with content and identify changes that may improve performance.
Coframe claims its technology has generated more than $300 million in incremental revenue for customers.
That figure refers to the company's estimated customer revenue improvements, not Coframe's own revenue or independently audited financial performance.
Founded by a Stanford Entrepreneur
Payne founded Coframe in 2023 after studying mathematics and computer science at Stanford.
He previously co-founded Autograph, the digital collectibles company associated with Tom Brady, which reached a reported valuation above $2 billion.
Coframe was also co-founded by Pavlo Razumovskyi.
The company has expanded its capabilities through acquisitions involving businesses founded by former Optimizely executives.
The Opportunity and the Risks
Coframe operates at the intersection of AI agents, advertising technology and conversion-rate optimization.
Its opportunity is substantial because nearly every digital business needs websites and sales funnels that convert visitors into customers.
But the company must demonstrate that autonomous experimentation delivers reliable improvements rather than merely optimizing short-term metrics.
Its agents also need safeguards to prevent misleading content, broken user experiences and inappropriate changes to business websites.
The Series A will support the development of Coframe's technology and its expansion among enterprise customers.
The larger bet is that websites will become adaptive software systems rather than static interfaces updated manually by human teams.
Sources: Coframe announcement · Antler — thesis and founders