The next frontier of online video further blurs the line between human- and AI-generated content.

In late September, Meta CEO Mark Zuckerberg announced "Vibes," a feature that allows users to create and watch AI-generated videos. ChatGPT maker OpenAI quickly followed with the launch of Sora 2, which people can use to create videos with cameos of themselves, friends and others who grant permission. Despite only being available by invitation, the new tool promptly jumped to the top of Apple's app store.

The apps are part of a burgeoning family of AI tools that make it far easier for non-experts to create sophisticated videos, including hyperrealistic or fantastical content

"You're only limited by your imagination," Hany Farid, a professor of electrical engineering and computer sciences

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