Zipline, a startup making drones that can deliver small packages like meals and medical supplies, is in talks to raise $1 billion at a valuation of roughly $20 billion, according to three people with knowledge of the fundraise.

The funding round, if it closes, would more than double its valuation from its last funding round, which valued the company at $7.6 billion after the investment. It follows a partnership announced last month with Uber to expand delivery by drones across the U.S. and expectations by investors that the costs of drone delivery are falling, expanding what was once a niche market.

It’s not clear what impact the pledges by Anthropic and OpenAI to slow the pace of AI development will have on their upcoming public offerings. But the comments are having real effects already: more people outside Silicon Valley and Washington are now alert to potential risks from AI in a way they weren’t even very recently. That’s not great news for startups trying to convince consumers and businesses that the tech is worth it, some investors told me.

One venture capitalist, for example, told me about a startup that has recently found customers to be more wary of buying its AI app for small- and medium-sized businesses in the light of news stories about potentially catastrophic AI.