Listen Labs, a startup founded by Alfred Wahlforss, has secured $69 million in Series B funding led by Ribbit Capital, valuing the company at $500 million and bringing its total capital to $100 million. The funding round follows a unique approach to hiring engineers, where Listen Labs used a billboard in San Francisco displaying random numbers as AI tokens that could be decoded to participate in a coding challenge.

The platform uses AI-powered interviews to conduct research, allowing companies to gather insights from customers in hours instead of weeks. Listen Labs has already powered several high-profile initiatives, including Microsoft's 50th anniversary celebration and Chubbies' product development process.

Wahlforss cited the Jevons paradox, which states that as technology makes a resource more efficient, overall consumption increases rather than decreases. He believes that AI-powered research will create new demand for customer understanding, enabling researchers to conduct an order of magnitude more research and non-researchers to participate in it.

The company plans to expand its product roadmap to include the ability to simulate customers and enable automated action based on research findings. However, this raises ethical concerns about automated decision-making.

Listen Labs has grown rapidly since its launch nine months ago, with annualized revenue growing 15x to eight figures and over one million AI-powered interviews conducted. The company's growth suggests appetite for the experiment, with Microsoft's Patel saying that Listen has "removed the drudgery of research and brought the fun and joy back into my work."