LMArena reports Muse Spark 1.3 (Max) at #13 on Agent Arena with +4.2% net improvement across 8.7K+ real agentic sessions — a 17-rank climb from Muse Spark 1.2 (xHigh) at #30. Code, Work, and Chat all improved, with Code moving to #15 (+4.3%).

Key Takeaways

  • ✓#13 on Agent Arena with +4.2% net improvement over 8.7K+ sessions.
  • ✓17-rank climb from Muse Spark 1.2 (xHigh) at #30.
  • ✓Code reaches #15 (+4.3%); Work and Chat also improve.
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Key Decision Metrics at a Glance

TL;DR Verdict
🏆 Benchmark RankRank
#13 on Agent Arena with +4.2% net improvement over 8.7K+ sessions.
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💰 Cost & PlansCompare
in: $1.25 / out: $4.25
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🛠️ Ecosystem & IDERules
LMArena · Agent Arena · Muse Spark 1.3 Max
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