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Zhihu recently released its Q4 2024 and full-year financial results. The data shows that Zhihu's annual revenue reached 3.6 billion yuan, a 14.3% decrease compared to last year. However, in Q4, Zhihu achieved a significant breakthrough, with revenue reaching 860 million yuan. Adjusted net profit was 97.1 million yuan, and operating profit was 23.1 million yuan, successfully achieving overall profitability. This marks the first time Zhihu has achieved overall profitability in a single quarter since its IPO.

Recently, a research team from the University of Illinois at Urbana-Champaign, Sony AI, and Sony Group introduced a new technology called MMAudio, which aims to achieve high-quality audio synthesis from videos through multi-modal joint training. The core innovation of MMAudio is its ability to generate synchronized audio using video and text inputs, thereby expanding the application scenarios for audio generation. MMAudio is designed to support generating sound effects that align with video content from either video or text inputs.

An AI-written book about the history of the Maui wildfires has become an Amazon bestseller, sparking significant controversy. The writing style of the book suggests it may have been generated by AI, leading to harsh criticism from reviewers. Some believe the book serves as evidence of disaster planning or foresight, intensifying conspiracy theories regarding the origins of the wildfires.