Meta open-sources Muse Spark, topping Kimi and GLM on most agentic and multimodal benchmarks

bindureddy · x · 2026-10-16

Meta has open-sourced its multimodal model Muse Spark under the Muse Open License. Sharath Bulusu-tier commentator bindureddy calls it the best US open-source model, beating Kimi and GLM, and a strong base for custom fine-tunes as Meta races to catch up.

The accompanying benchmark table shows Muse Spark (xhigh) leading on JobBench (61.8), MCP-Atlas (89.2), HLE-Diamond (26.1), AA-Omniscience (25) and ZeroBench (50.0), though Kimi K3 still edges it out on coding benchmarks like Terminal-Bench 2.1 (85.0 vs 76.4) and GLM 5.3 scores higher on GDPval-AA v2.

Related event: Meta Open-Sources Muse Spark Open, an 816B-Parameter Model It Calls America's Best(40 posts)→

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