Head-to-head comparison across 3benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Grok 4.3
74
Muse Spark
80
Pick Muse Spark if you want the stronger benchmark profile. Grok 4.3 only becomes the better choice if knowledge is the priority or you need the larger 1M context window.
Coding
+14.4 difference
Knowledge
+3.5 difference
Multimodal
+4.1 difference
Grok 4.3
Muse Spark
$1.25 / $2.5
N/A
209 t/s
N/A
12.36s
N/A
1M
262K
Pick Muse Spark if you want the stronger benchmark profile. Grok 4.3 only becomes the better choice if knowledge is the priority or you need the larger 1M context window.
Muse Spark is clearly ahead on the provisional aggregate, 80 to 74. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Muse Spark's sharpest advantage is in coding, where it averages 61.7 against 47.3. The single biggest benchmark swing on the page is HLE, 35% to 50.4%. Grok 4.3 does hit back in knowledge, so the answer changes if that is the part of the workload you care about most.
Grok 4.3 gives you the larger context window at 1M, compared with 262K for Muse Spark.
Muse Spark is ahead on BenchLM's provisional leaderboard, 80 to 74. The biggest single separator in this matchup is HLE, where the scores are 35% and 50.4%.
Grok 4.3 has the edge for knowledge tasks in this comparison, averaging 53.9 versus 50.4. Inside this category, AA-Omniscience Hallucination Rate is the benchmark that creates the most daylight between them.
Muse Spark has the edge for coding in this comparison, averaging 61.7 versus 47.3. Inside this category, Terminal-Bench Hard is the benchmark that creates the most daylight between them.
Muse Spark has the edge for multimodal and grounded tasks in this comparison, averaging 82.2 versus 78.1. Inside this category, AA-MMMU-Pro is the benchmark that creates the most daylight between them.
For engineers, researchers, and the plain curious — a weekly brief on new models, ranking shifts, and pricing changes.
Free. No spam. Unsubscribe anytime.