Meta Muse Spark Open launches in limited preview on GroqCloud
Meta's Muse Spark Open, an open-weight agentic coding model, is available in limited preview on GroqCloud at launch. It has 816B total parameters with 42B active per token across 256 experts, a 131,072-token context window, text and image input, and runs at 350+ tokens per second per user on GroqCloud.
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“Meta built Muse Spark Open for the long, multi-step coding work that developers are handing to agents today. Those agents make dozens of model calls to finish a single task. Running the model on GroqCloud keeps each of those calls fast, so developers get work done faster.”
Summary last validated Oct 16, 2026
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