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Meta’s Muse Spark Open now available in Amazon SageMaker JumpStart

AWS Machine Learning Blog · Oct 15, 2026 · Product Launches

Meta's 816B-parameter Muse Spark Open coding model is now deployable via SageMaker JumpStart

“Meta says the model plans, acts, observes the result, and corrects itself over long horizons, rather than making single tool calls.”

Meta's Muse Spark Open, a 816B-parameter mixture-of-experts reasoning model optimized for agentic coding workflows, is now available for self-hosted deployment via Amazon SageMaker JumpStart. The model features a 1M-token context window, multimodal inputs, and was trained specifically on real developer workflows including multi-file refactors and long debugging sessions. Its availability on SageMaker lowers the barrier for enterprises to run a frontier-scale open-weight coding agent in their own AWS infrastructure.

Meta open-weight coding-models agentic-coding SageMaker MoE AWS

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