Meta AI
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Listed July 2026
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Multimodal Foundation
Muse Spark 1.1
Arena #12 • score 1491 ±4
Proprietary model from Meta AI, listed July 2026. Arena text score 1491 (#12 of 414 entries). $1.25 input / $4.25 output per 1M tokens. 1M tokens context.
Parameters
Not disclosed
Context Window
1M tokens
Input / 1M tokens
$1.25
Output / 1M tokens
$4.25
Benchmark Results
- Arena Text Elo: 1491 (#12 of 414 on arena.ai · ±4 · 39,847 votes · variant: muse-spark-1.1)
- OSWorld-Verified: 80.7% (Success rate · 100 steps · tested 2026-07-09)
- AA Intelligence Index: 33.7 (Artificial Analysis v4.3 · best setting: Muse Spark 1.1 (Xhigh) · checked 2026-10-11)
- AA Coding Index: 71.3 (Artificial Analysis v4.3 · best setting: Muse Spark 1.1 (Xhigh) · checked 2026-10-11)
- AA Agentic Index: 25.8 (Artificial Analysis v4.3 · best setting: Muse Spark 1.1 (Xhigh) · checked 2026-10-11)