Muse Spark 1.2

Meta AIπŸ‡ΊπŸ‡Έ United States
active
Context window1049K tokens
Input / 1M tokens$1.25
Output / 1M tokens$4.25

Pricing and context window via OpenRouter, 2026-11-03.

Version History

1.2minor

Meta released Muse Spark 1.2 alongside its first coding agent, Muse Code, with the two trained together for improved coding performance over the standalone Muse Spark 1.1.

Benchmark Scores

Full leaderboard β†’
BenchmarkScoreRankSource
AA Intelligence Index39.6 index23 of 123Artificial Analysis, Oct 2026 β†—
Arena Elo1492 Elo11 of 151LMArena, Oct 2026 β†—
GPQA90.4%38 of 159Artificial Analysis, Aug 2026 β†—
AA Coding Index72.2 index19 of 78Artificial Analysis, Oct 2026 β†—
Speed (tok/s)265 tok/s12 of 126Artificial Analysis, Nov 2026 β†—
Hallucination Rate (lower is better)33.3%18 of 109Artificial Analysis, Aug 2026 β†—

Rank is against every model in our database with a sourced score on that benchmark, each counted once with its best score.

Coverage