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A team of AI researchers from Peking University, Kuaishou Technology, and Beijing University of Posts and Telecommunications, has developed a new AI model called Pyramid Flow, that can be used to generate virtual hi-resolution (768p) video imagery. The group has written a paper describing how they built their model, its attributes and uses to which it might be put and have posted it on the arXiv preprint server.

Over the past several years, several entities, both private and public, have been scrambling to build video AI generation models. This is because such models can be used to create applications capable of producing virtual video content for use in television and motion pictures—at far lower cost than filming real scenes.

This means that AI models are very rapidly increasing in value. In this new effort, the team in China has chosen to make their model open-source, which means anyone who chooses to develop an application for it (an inference shell) and run it locally—including for commercial use—can do so at no cost.

The makers of Pyramid Flow have added a new wrinkle to AI video generation models—it generates video in multiple low-resolution stages before generating the final result of its processing. The research team claims that an inference shell can generate a five-second video in 56 seconds—the result will be 384p resolution.

They point out that their approach generates video using far less computing power, which makes it less expensive. It also dramatically reduces the number of tokens needed for video generation, making it more efficient.

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