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HarryWilliams
HarryWilliams
May 22, 2026

Meituan LongCat has open-sourced its commercial-grade digital human video generation model, LongCat-Video-Avatar 1.5. The model features major upgrades in lip sync, physical plausibility, and multi-person interaction. It uses an enhanced Whisper-large audio encoder and a new data system for better generalization. With DMD distillation technology, inference is 15 times faster. Benchmark tests show it outperforms rivals like Kling Avatar2.0 and HeyGen in user preference and video stability. The release aims to provide a verifiable technical foundation for developers.

Meituan LongCat has open-sourced its commercial-grade digital human video generation model, LongCat-Video-Avatar 1.5. The model features major upgrades in lip sync, physical plausibility, and multi-person interaction. It uses an enhanced Whisper-large audio encoder and a new data system for better generalization. With DMD distillation technology, inference is 15 times faster. Benchmark tests show it outperforms rivals like Kling Avatar2.0 and HeyGen in user preference and video stability. The release aims to provide a verifiable technical foundation for developers.
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