Muse Spark Open (Xhigh) and Muse Wonder (Max) share a maker, Meta, but not a price sheet or a benchmark profile. The biggest separation is in overall capability: 43.6 for Muse Wonder Max against 24.9 for Muse Spark Open. No hands-on testing went into this write-up; it summarises the recorded benchmark, price and speed data for both models.
The headline benchmark
The catalogue puts Muse Spark Open at 24.9 and Muse Wonder Max at 43.6 on its intelligence index. The difference is large enough that the lower-scoring model has to win on cost or speed to stay in the running. In relative terms, Muse Wonder Max scores 75% higher.
Across the 109 active models with an intelligence score in the catalogue, Muse Spark Open ranks 68th and Muse Wonder Max ranks 28th.
The catalogue does not yet split either model's score into coding and math indexes.
What they cost
Muse Spark Open lists $1.25 per million input tokens and $4.25 per million output tokens; Muse Wonder Max lists $4.00 and $20.00. Muse Wonder Max costs 4.7 times as much per output token.
For a sample workload of 1 million input tokens and 200,000 output tokens, Muse Spark Open would cost $2.10 and Muse Wonder Max $8.00, a difference of $5.90. Scale it up to a support assistant answering 10,000 conversations of 2,000 input and 500 output tokens each and the bill is $46.25 for Muse Spark Open against $180 for Muse Wonder Max.
Is the price in proportion?
Dividing the blended price by the intelligence index gives a rough cost per point: $0.080 for Muse Spark Open and $0.18 for Muse Wonder Max, per million tokens. Muse Spark Open delivers each index point for 56% less; whether Muse Wonder Max's extra 18.7 points are worth the premium depends on how often your tasks need them.
Which is newer
The release dates are October 12, 2026 for Muse Wonder Max and October 15, 2026 for Muse Spark Open, 3 days apart. They are effectively contemporaries.
Muse Spark Open is the faster writer
Muse Spark Open generates about 207 tokens per second and Muse Wonder Max about 134 tokens per second. On long outputs, that is a real advantage for Muse Spark Open. Time to first token is 0.94 seconds for Muse Spark Open and 26 seconds for Muse Wonder Max. In an interactive app, Muse Spark Open will feel noticeably more responsive.
Add the two numbers up for a 400-token reply and Muse Spark Open finishes first: 2.9 seconds for Muse Spark Open, 29 seconds for Muse Wonder Max.

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