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Group 1 - Alibaba released a cinematic-level video model called Wanxiang 2.6 [1] - ByteDance officially launched the Seedance 1.5 pro audio-video creation model [1] - Nvidia introduced the Nemotron 3 series of open-source models [1] Group 2 - Databricks, a US big data and AI company, raised over $4 billion with a valuation of $134 billion [1][2]