Mr. Katzenberg, a onetime chairman of Walt Disney Studios, and Ms. Whitman, a former head of eBay and Hewlett-Packard, will be competing to some extent against Netflix, Disney Plus, Amazon Prime Video and Hulu. They predict that most of their audience, however, will tune in during the daytime hours, when YouTube, Instagram, Facebook and Twitch are most active.

Quibi has handed some of the $1 billion it raised to other online influencers, including Willam Belli, who will be the host of a fashion show called “Fashion’s a Drag.” Brittany Luse and Eric Eddings will create a version of their popular podcast, “The Nod,” for the platform. And the figure skater Adam Rippon will host “This Day in Useless Celebrity History.”

These digital stars will not abandon social media for Quibi, but Mr. Katzenberg said he hoped that having a solid group of them in one place — along with short-form programming from ESPN, NBC News, TMZ and Telemundo — will persuade their fans to pay the $8 monthly subscription fee (or $5 for an ad-supported version).

“Information today is in the same place as music was seven to eight years ago,” Mr. Katzenberg said. “We have all found our little ways, our tricks to pull from different places and piece together those pieces of information that are important to us: news, fashion, sports. But those things are not professionally curated, not professionally produced and not convenient.”