Meta's Muse Spark Open: 816B-parameter open-weight model, 1M context, live on Together
togethercompute · x · 2026-10-22
- Together AI announces Muse Spark Open, billed as the most capable US open-weight model to date, now live on its platform.
- Natively multimodal, 816B total parameters (42B active), 1M-token context window, built for coding and agentic work: long-horizon tasks, complex software engineering, multi-step reasoning.
- Meta and Together will host a technical webinar on Oct 26, 12 PM PT covering the model card, benchmarks, and Together's production serving architecture, with speakers including Corey Featherly (Meta) and Dan Fu (Together AI).
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