月之暗面发布Kimi K3.1 Pro：2.8万亿参数开源权重模型，11月4日开放权重
月之暗面于2026年10月22日前后发布Kimi K3.1 Pro，一款2.8万亿参数、1040亿激活参数的多模态MoE模型，宣称性能逼近Fable 5.1；官方承诺11月4日发布开源权重，但截至报道时权重尚未公开；独立评测显示其在智能指数、代码与网络安全基准中表现突出，但存在推理成本、本地部署可行性及营销透明度等争议。
![[AINews] Kimi 3.1 Pro 104BA-2.8T: Fable-5.1-Class Open Weights narrows Closed-AI lead to 1 month... and Pro Highspeed API with 2-3× speed](https://latent.space/og/card/post/ainews-kimi-31/4da802572e7369acdf4cbdee535f934d70a599942d61e7d15b8168b70aeb7a84.png)
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Microsoft’s MAI-DxO system achieves 83% accuracy in diagnosing complex cases, but most of the improvement stems from the underlying large model.
According to research published in Science, Microsoft’s AI diagnostic system MAI-DxO achieved an accuracy of 83% in simulating the diagnosis of complex cases, significantly outperforming general practitioners at 36%; however, analysis indicates that this performance improvement stems primarily from the advanced foundation models it leverages—such as GPT-5.5—while the marginal gains attributable to its proprietary DxO orchestration architecture are limited, and no clear advantages were observed in routine settings like emergency departments.
NVIDIA Cosmos Platform Upgrade: New Toolchain for Training, Evaluating, and Deploying World Models
NVIDIA has expanded the Cosmos platform by introducing the Cosmos Data Factory blueprint, the Cosmos Framework training optimization tool, and the Cosmos 3 NIM microservice, supporting multimodal data generation, adaptation to open-source world models (such as GR00T and QWEN), and low-latency inference; real-world applications have already been deployed by Porsche, ANYbotics, Ultralytics, ADNOC, and others.