Sand AI 开源 MAGI-1 视频生成模型：无限扩展、高保真
2025 年 4 月 21 日，Sand AI 发布开源视频生成模型 MAGI-1，以其创新的自回归扩散架构和卓越性能，迅速成为生成式 AI 领域的焦点。该模型采用 Apache 2.0 许可，代码、权重和推理工具已在 GitHub 和 Hugging Face 开放，为全球开发者提供强大创作工具。MAGI-1 基于扩散变换器架构，引入块因果注意力、并行注意力块、Sandwich 规范化等技术创新，通过分块生成（每块 24 帧）实现高效视频生成。其独特流水线设计支持并行处理，最多可同时生成四个块，大幅提升效率。模型通过快捷蒸馏技术，支持灵活的
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