vLLM adds day 0 support for Meta's Muse Spark Open, a 816B open-weight MoE model

vLLM announces day 0 support for Muse Spark Open, an 816B-parameter open-weight mixture-of-experts model with 42B active parameters and a 1M-token context window.

The model is built for long-horizon agentic coding and supports image, video and audio input, with prebuilt images for Nvidia and AMD and initial TPU support. Nightly PyPI wheels await merging of PR #61879, which usually takes about a week.