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Meta releases Muse Spark Open, an 816B parameter multimodal AI model

By PulseAugur Editorial · [1 sources] ·

Meta has released Muse Spark Open, a new open-weight AI model with 816 billion parameters. This model is capable of processing text, images, video, and audio, and can handle up to one million tokens of context. Muse Spark Open performs comparably to leading Chinese open-weight AI models on benchmarks and is designed to run efficiently on Apple's M5 Ultra hardware. AI

IMPACT Sets a new benchmark for open-weight multimodal models with large context windows, potentially driving further innovation in local AI deployment.

RANK_REASON Frontier-lab model release with system card [lever_c_demoted from frontier_release: ic=1 ai=1.0]

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AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Meta releases Muse Spark Open, an 816B parameter multimodal AI model

How we ranked this

Signal score
67 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Significant
Frontier-lab model release with system card [lever_c_demoted from frontier_release: ic=1 ai=1.0]
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
model release, product
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
Breaking (< 6h)
Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.

Full methodology in our editorial standards.

COVERAGE [1]

  1. The Decoder TIER_1 English(EN) · Matthias Bastian ·

    Muse Spark Open is Meta's answer to Qwen, GLM, and Kimi in the open-weight race

    <p><img alt="" class="attachment-full size-full wp-post-image" height="768" src="https://the-decoder.com/wp-content/uploads/2026/07/meta_AI_logo.png" style="height: auto; margin-bottom: 10px;" width="1376" /></p> <p> Meta's Muse Spark Open is a new open-weight model with 816 bill…

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