Meta’s Muse Spark Open (816B MoE) added to Amazon SageMaker JumpStart
Meta’s coding-optimized Muse Spark Open (Mixture-of-Experts, 816 billion parameters with 42B active per token and a 1 million-token context window) is now available in Amazon SageMaker JumpStart as two variants (Muse-Spark-Open-816B-A42B BF16 and Muse-Spark-Open-816B-A42B-NVFP4 NVFP4). The model’s open weights (released under the Muse Model License) can be deployed to SageMaker AI endpoints in your AWS account, with instance recommendations ml.p6-b300.48xlarge for BF16 and ml.p5e.48xlarge for NVFP4 and support for the model’s agentic reasoning and multimodal inputs.