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美团LongCat-2.0开源推理代码大模型总参数达1.6万亿

发布时间：2026-07-06 11:35:04浏览次数：次

<article><section data-type="rtext"><p>【环球网科技报道 记者 李文瑶】7月6日，美团宣布将万亿参数大模型LongCat-2.0正式开源，并同步开放针对国产算力芯片深度优化的推理代码。该模型总参数达1.6万亿，平均激活约48B，专为真实的Agentic Coding任务设计。</p><p><i class="pic-con"></p><p>LongCat-2.0在架构上引入了LongCat稀疏注意力机制（LSA）和N-gram Embedding，前者通过流感知索引、跨层索引等策略提升百万级长上下文的训练与推理效率，后者以135B参数投入新模块，在MoE稀疏度接近***%的背景下进一步强化代码理解与生成能力。后训练阶段，模型***用多教师在线蒸馏，将专家分为Agent、推理和交互三类，兼顾自主执行、自适应推理与安全对齐。</p>
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            <p>值得关注的是，官方透露，LongCat-2.0是业界首个在五万卡国产算力集群上完成推理的万亿参数模型。团队从模型架构、芯片适配到部署策略进行深度协同优化：通过Super Kernel减少算子启动开销、Weight Prefetch隐藏I/O延迟，并***用PD分离部署与KV-cache切分，有效缓解显存与带宽瓶颈，实现百万上下文在国产芯片上的稳定推理。</p><p>美团此次开源同步提供BF16、FP8及INT8等多精度版本，覆盖不同算力平台部署需求。官方表示，希望以开源为纽带，盘活存量国产算力，让更多国产卡包括老卡都能流畅部署万亿大模型推理服务，释放国产算力生态的长期价值。</p></section><img src='/image/157112-0' alt='美团LongCat-2.0开源推理代码 大模型总参数达1.6万亿'> </div>
        
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