Meta AILaunchAI ModelsSeptember 2, 2026

Meta releases Muse Spark 1.3 agentic coding model

Read original source →research.meta.ai

Muse Spark 1.3 (max) scores 62 on the Artificial Analysis Intelligence Index, behind only Claude Fable 5.1 and Claude Opus 5, and 68 on the Coding Agent Index — #2 behind Claude Opus 5. Meta says it uses ~20% fewer tool calls and ~25% fewer tokens than Muse Spark 1.2.

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1 day · 7 reports · 25 community posts · from Sep 2

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