Muse Spark Open: more control, not a local assistant for all
The model is downloadable subject to conditions; the demo on two high-end machines does not describe typical hardware.
Weights published under a specific license
Facts, analysis and limits
Verified facts
- Context of a million tokens; text, image, video and audio input, text output according to model card.
- Meta indicates at least 700GB of VRAM for NVFP4 and 2TB for BF16; a dual Mac Studio M5 Ultra configuration with MLX is also presented.
- The license requires, among other things, the display "Built with Muse Spark Open". The activities of Model as a Service beyond $20 million in aggregate revenues over 12 months require a separate agreement.
- Access to weights on Hugging Face subject to acceptance of conditions; partner APIs are announced. The scores and demonstrations remain those of the supplier.
What changes
The publication of weights expands deployment choices, while the licence retains obligations and commercial thresholds.
Practical implication
Before buying hardware, check the actual benefit over a hosted service and review the license terms.
Availability
Publicly advertised weights under Muse Model License, with form and access conditions; no specific Belgian exclusion identified. Verify API supplier contract and processing region.
Limits and uncertainty
Open-weight does not mean Apache license or execution on an ordinary laptop. No download, authenticated access or hardware test performed; Spark Open and Wonder are two separate events.