Meta's Muse Spark Open scores 39 vs 48 for closed Spark 1.3 on AA Intelligence Index
EAccelerate_42 · x · 2026-10-16
Artificial Analysis data shows Meta's open Muse Spark Open and closed Muse Spark 1.3 are different releases with a clear gap: Intelligence Index 39 (Open, xhigh) vs 45 (1.3, xhigh) vs 48 (1.3, max). Terminal-Bench 4.0: 8% vs 17%/33%; AA-Briefcase Elo: 1280 vs 1486/1581. Both are 816B total / 42B active params with 1M context and identical pricing ($1.25/$4.25 per M tokens), though Open costs less per task ($0.84 vs $1.60). The open weights license allows unrestricted commercial use — welcome, but the closed version remains clearly stronger.
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