The AI startup open evidence is raising a fresh round of capital from Sequoia at a billion dollar valuation.

It's the latest big funding round in AI healthcare, a slice of the market that's catching more investors' attention and may represent a positive way AI can contribute to the world.

Our Kate Rooney has the news exclusively in today's tech check.

Hey, Kate.

Hey, Carl, good morning. So health care and AI is really seen as the antidote to some of the doom around this technology.

There is, of course, real worry about AI safety and some of the nefarious uses for this tech as it becomes more powerful.

But investors do see a silver lining here in health care, a way to potentially cure diseases and make burnt out doctors

more productive. Startup open AI, or excuse me, open evidence is working on that burnout problem

with a chat bot for doctors. Sort of like chat GPT in some ways. Company says a quarter of U.S.

physicians are already using it. The company raised a new round from Sequoia at that billion

dollar valuation. We did break that news this morning. Founder Daniel Nadler pointed out how much

higher the bar is for AI accuracy in clinical settings. Their model was trained on only peer-reviewed

medical journals. It was not even connected to the internet when it was trained, which helps

the trust factor.

Garbage in, garbage out, gold in, gold out.

And if you ask it a question, and it's trained on the sort of apex medical journal in the world,

such as the England Journal of Medicine, as well as other sources like the FDA, the CDC,

other peer-reviewed medical journals, you're going to get those answers grounded in those

sources that you're able to use as a doctor at the point of care.

Sequoia partner Pat Grady led the funding around. He told me the opportunity is massive in

healthcare, both on the clinical side and in the back office, but investors need to be picky.

There are a lot of great ideas in health care, but it is such a complex system.

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