亚马逊在re:Invent2025推出第二代自研大模型家族Nova2，包括Lite、Pro、Sonic和Omni四款新品，主打行业领先性价比，定价约为同类模型一半。同时宣布与谷歌云互联，方便客户跨平台调用竞对模型。
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