Muse Spark Open
Meta · Lançado 10/2026
Muse Spark Open is Meta's open-weight release of Muse Spark, an 816B mixture-of-experts model with 42B active parameters and a 1M-token context, available as downloads and from seven hosted providers. Conditional: the Muse Model License has limited commercial terms we did not read, the Meta pages we read give no hosted price, and Meta says its full evaluation report is still to come. It suits teams that want to self-host or shop between hosts, not buyers who need audited terms or independent benchmarks.
É adequada para ti?
Bom para
- Self-hosting a large open-weight model: the weights are on Hugging Face, Amazon SageMaker AI, Google Cloud Model Garden and Microsoft Foundry Models, and Meta lists SGLang, vLLM, TensorRT-LLM, Hugging Face Transformers, Apple MLX, llama.cpp and Unsloth as supported inference engines
- Choosing where to run it: Meta lists hosted inference on Baseten, Fireworks AI, Groq, Modal, Nebius, OpenRouter and Together AI
- Long-horizon coding and agentic work: Meta says it excels at long-horizon tasks, complex software engineering and multi-step reasoning (a vendor description, not a measured result we could read)
- Desktop deployment on Apple hardware: Meta says it was optimized for Mac Studio with M5 Ultra, that each machine's GPU can use up to 512 GB of unified memory so two machines can hold the entire model, and cites optimizations for AMD, Apple, Intel and NVIDIA silicon
- Long inputs and mixed media: Meta describes a 1M-token context and a natively multimodal model
Não recomendado para
- Buyers who need a standard open-source licence: Meta releases it under the Muse Model License, which it describes as having limited commercial terms that allow many developers to use the model for free
- Buyers who need independent benchmark evidence: Meta says the full evaluation report is available soon, and the benchmark charts were not readable in the pages we fetched
- Cost planning from Meta's pages: the Meta announcement and model docs we read state no per-token price, so hosted rates must come from each provider
- Small single-machine setups: Meta's own desktop example uses two Mac Studios with M5 Ultra
Preços
Entrada
Free (open weights)
Saída
Free (open weights)
Contexto
1M ctx; Muse Model License (limited commercial terms); no hosted price read
Ainda sem alterações de veredicto
O relógio começa a contar no primeiro dia: as alterações aparecem aqui à medida que o nosso veredicto evolui.
Fontes
Registo de verificação
- Preços· Sem alterações
Agente automatizado