Results based on +5K real-world agentic sessions are in: Muse Wonder (Max) by @AIatMeta just landed in the Agent Arena at #12 with +6.4% net improvement.
This result is +2.8 pts and four places above Muse Spark 1.3 (Max) at #16 with +3.6%. The added performance of Muse Wonder (Max) comes at a higher price: $1.13 median cost per task vs. $0.54 for Spark 1.3, or about 2.1× the cost.
Compared with nearby models in Agent Arena, Muse Wonder (Max) shows cost efficiency: at $1.13/task, it comes within 1 percentage point of #10 GPT-5.6 Sol (xHigh) at 25% lower cost, and within 2pts of #9 Claude Fable 5 (High) at 67% lower cost.
By category, Muse Wonder (Max) does better in Chat, Work and Code vs. Muse Spark 1.3:
- Chat: #12 (+6.5%) vs. #15 (+3.3%)
- Work: #13 (+6.8%) vs. #18 (+3.7%)
- Code: #15 (+5.2%) vs. #18 (+4.2%)
Congrats to the @AIatMeta team on this release!