Short, sourced daily briefings on the AI stories everyone is talking about, from new models to the chips that power them.https://dailyaibrief.xyz/https://dailyaibrief.xyz/posts/meta-muse-spark-open-open-weight-model-mac-studio/https://dailyaibrief.xyz/posts/meta-muse-spark-open-open-weight-model-mac-studio/Meta released Muse Spark Open, an 816B-parameter open-weight multimodal MoE model that runs locally on two M5 Ultra Mac Studios via Apple MLX.Fri, 16 Oct 2026 00:00:00 GMTMuse Spark OpenMeta open-weight modelApple MLXmixture of expertslocal AIMac Studio M5 Ultrahttps://dailyaibrief.xyz/posts/stepfun-step-5-preview-open-weights-600b-moe/https://dailyaibrief.xyz/posts/stepfun-step-5-preview-open-weights-600b-moe/StepFun released open weights for Step 5 Preview, a 600B-parameter sparse MoE model with 27B active parameters and a 1M-token context window.Fri, 16 Oct 2026 00:00:00 GMTStep 5 Preview open weightsStepFunopen-weight MoE modelChinese open modelsagentic codingNVFP4https://dailyaibrief.xyz/posts/nvidia-nemotron-3-5-super-vl-bolt-open-models/https://dailyaibrief.xyz/posts/nvidia-nemotron-3-5-super-vl-bolt-open-models/NVIDIA launched Nemotron 3.5 Super VL, a 120B open multimodal MoE, plus Bolt 74B-A9B, which fits in 24GB for local agents on RTX and DGX Spark.Fri, 16 Oct 2026 00:00:00 GMTNemotron 3.5 Super VLNVIDIA open modelsNemotron 3.5 Boltlocal AI agentsRTX Sparkpost-training datasetshttps://dailyaibrief.xyz/posts/microsoft-mai-base-2-2-8-trillion-parameter-pretraining/https://dailyaibrief.xyz/posts/microsoft-mai-base-2-2-8-trillion-parameter-pretraining/Microsoft AI finished pre-training MAI-Base-2, a 2.8T-parameter MoE trained on 16,000 NVIDIA GB200 GPUs in 38 days. Post-training is underway.Fri, 16 Oct 2026 00:00:00 GMTMAI-Base-2Microsoft AIGB200 training clusterAI pre-trainingmixture of expertsMustafa Suleymanhttps://dailyaibrief.xyz/posts/datadog-scout-1-0-rl-post-training-ai-sre/https://dailyaibrief.xyz/posts/datadog-scout-1-0-rl-post-training-ai-sre/Datadog's Scout 1.0 post-trains GLM-5.3 Flash with reinforcement learning for incident investigation, matching frontier models at 3-8x lower cost.Fri, 16 Oct 2026 00:00:00 GMTDatadog Scout 1.0reinforcement learning post-trainingAI SREGLM-5.3 FlashBits AIspecialized models