Head-to-head comparison across 4benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Grok 4.20
71
Muse Spark
69
Pick Grok 4.20 if you want the stronger benchmark profile. Muse Spark only becomes the better choice if agentic is the priority.
Agentic
+11.9 difference
Coding
+0.7 difference
Reasoning
+10.8 difference
Multimodal
+5.2 difference
Grok 4.20
Muse Spark
$2 / $6
N/A
233 t/s
N/A
10.33s
N/A
2M
262K
Pick Grok 4.20 if you want the stronger benchmark profile. Muse Spark only becomes the better choice if agentic is the priority.
Grok 4.20 has the cleaner provisional overall profile here, landing at 71 versus 69. It is a real lead, but still close enough that category-level strengths matter more than the headline number.
Grok 4.20's sharpest advantage is in reasoning, where it averages 53.3 against 42.5. The single biggest benchmark swing on the page is GDPval-AA, 1055 to 1444. Muse Spark does hit back in agentic, so the answer changes if that is the part of the workload you care about most.
Grok 4.20 gives you the larger context window at 2M, compared with 262K for Muse Spark.
Grok 4.20 is ahead on BenchLM's provisional leaderboard, 71 to 69. The biggest single separator in this matchup is GDPval-AA, where the scores are 1055 and 1444.
Muse Spark has the edge for coding in this comparison, averaging 61.7 versus 61. Inside this category, LiveCodeBench Pro is the benchmark that creates the most daylight between them.
Grok 4.20 has the edge for reasoning in this comparison, averaging 53.3 versus 42.5. Inside this category, ARC-AGI-2 is the benchmark that creates the most daylight between them.
Muse Spark has the edge for agentic tasks in this comparison, averaging 59 versus 47.1. Inside this category, DeepSearchQA is the benchmark that creates the most daylight between them.
Muse Spark has the edge for multimodal and grounded tasks in this comparison, averaging 80.4 versus 75.2. Inside this category, GDPval-AA is the benchmark that creates the most daylight between them.
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