Head-to-head comparison across 2benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
LongCat-2.0
80
Muse Spark
80
Treat this as a split decision. LongCat-2.0 makes more sense if agentic is the priority or you need the larger 1M context window; Muse Spark is the better fit if coding is the priority.
Agentic
+11.8 difference
Coding
+2.2 difference
LongCat-2.0
Muse Spark
$0.75 / $2.95
N/A
N/A
N/A
N/A
N/A
1M
262K
Treat this as a split decision. LongCat-2.0 makes more sense if agentic is the priority or you need the larger 1M context window; Muse Spark is the better fit if coding is the priority.
LongCat-2.0 and Muse Spark finish on the same provisional overall score, so this is less about a single winner and more about where the edge shows up. The provisional headline says tie; the benchmark table is where the real choice happens.
LongCat-2.0 gives you the larger context window at 1M, compared with 262K for Muse Spark.
LongCat-2.0 and Muse Spark are tied on the provisional overall score, so the right pick depends on which category matters most for your use case.
Muse Spark has the edge for coding in this comparison, averaging 61.7 versus 59.5. Inside this category, SWE-bench Pro is the benchmark that creates the most daylight between them.
LongCat-2.0 has the edge for agentic tasks in this comparison, averaging 70.8 versus 59. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
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