The $15 billion ad-powered AI startup your doctor may already be using

What happened: OpenEvidence, a Miami-based ad-powered AI search engine founded in 2022, is used by nearly two-thirds of US doctors to help make patient decisions, and it reached a $15 billion valuation. Key numbers: 42 million prompts processed last month; nearly $1 billion in investment over 18 months; $250 million raised in September at a $15 billion valuation; $100 million in ad buys for this Why it matters: The company faces scrutiny from researchers over the accuracy of its results as doctors grow more dependent on it, and competition from OpenAI and Anthropic pushing into the space.

OpenEvidence, a Miami-based ad-powered AI search engine founded in 2022, is used by nearly two-thirds of US doctors to help make patient decisions, and it reached a $15 billion valuation.

The company faces scrutiny from researchers over the accuracy of its results as doctors grow more dependent on it, and competition from OpenAI and Anthropic pushing into the space.