Muse Spark Open from @AIatMeta is now available on OpenRouter!
- strongest open-weight model from a US lab
- built for agentic coding
- 1M context
- fully multimodal: image, video, audio and PDF input
- $1.25/M in, $4.25/M out
OpenRouter adds Meta's Muse Spark Open, an open-weight model for agentic coding
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OpenRouter says Meta's Muse Spark Open is now available on its platform. Meta describes it as the most capable US open-weight model to date, built for coding and agentic work.
The model has 816B total and 42B active parameters, a 1M token context window, and accepts text, image, video, audio, and PDF input. OpenRouter lists pricing at $1.25 per million input tokens and $4.25 per million output tokens.
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Today we’re releasing Muse Spark Open, the most capable US open-weight model to date. Built for coding and agentic work, it excels at long-horizon tasks, complex software engineering, and multi-step reasoning. Key Model Specs: → 816B total / 42B active parameters → 1M token context window → Natively multimodal across text, image, video, audio
This story is featured in top picks: “Meta releases Muse Spark Open, a 816B open-weight model for coding and agents”
Source: OpenRouter · x.comPublished · added here