Unverified50% confidenceReleaseExact time
Meta Superintelligence Labs released Muse Spark Open, a sparse mixture-of-experts model with 816 billion parameters, designed for agentic coding and long-horizon reasoning.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/16/2026
First Seen
Valid until: 1/14/2027
Sources
Related Entities
Related Claims
UnverifiedMuse Spark Open's safety post-training was evaluated under Meta's Superintelligence Scaling Framework.76% similarUnverifiedMuse Spark Open has a hidden dimension of 8192 and uses grouped query attention (GQA) throughout.69% similarUnverifiedMuse Wonder Full holds a leading position in long-horizon coding benchmarks such as DeepSuite.68% similarUnverifiedThe Muse Wonder series is the product of fourteen months of technical reconstruction by Meta AI, trained on the gigawatt-scale super data center Prometheus.67% similarUnverifiedMeta previously had influence in open-source models (such as the Llama series), but was at a disadvantage in head-to-head competition with the flagship models of OpenAI, Google DeepMind and Anthropic.64% similar
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