Meta launches Muse Spark Open open-weight model

1. #0110.15
   Initial2026-10-15 17:47 · publication time

   Muse Spark Open

   Meta launched Muse Spark Open, an 816B-parameter (42B active) open-weights model published on Hugging Face with broad inference-runner and Mac Studio support, prompting community debate over its competitive benchmarks versus Qwen and GLM models and its revenue-capped 'Model as a Service' license clause.

   Source evidence: bigwheels · Hugging Face Blog · The Verge AI · TechCrunch AI

2. #0210.16
   Confirmation2026-10-16 00:54 · publication time

   Meta与苹果罕见联手：8160亿参数Muse Spark开源，两台Mac Studio就能本地运行

   Added details: 1M-token context; ~37 tokens/sec on four M5 Ultra Mac Studios at 8192-token context; custom Muse Model License permits modification, commercial use, and distribution with attribution, but enterprises with >$20M trailing 12-month revenue need a separate Meta agreement to offer the model as an API service; requires ~493GB memory at 4-bit, minimum two M5 Ultra Mac Studios with 512GB unified memory each, hardware cost over $40k.

   State after update: Meta's Muse Spark Open remains launched with weights on Hugging Face and optimized for Apple silicon local Mac Studio deployment. Follow-up coverage adds details on 1M-token context, ~37 tokens/sec, and custom Muse Model License revenue and API service clauses.

   Source evidence: theblockbeats

3. #0310.16
   Confirmation2026-10-16 03:47 · publication time

   英伟达刚拿下美国开源第一，Meta就以39分反超，Agent跑分却落后中国模型

   Meta's newly released open-weights model Muse Spark Open scored 39 on the Artificial Analysis intelligence index, displacing Nvidia's Nemotron 3.5 Super VL as the top US open model but trailing Chinese models like Xiaomi MiMo-V2.6-Pro (46) and Zhipu GLM-5.3 (45), with notably weak agent-test performance offset by best-in-class knowledge accuracy and lower token costs.

   Source evidence: theblockbeats

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