Head-to-head comparison across 3benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Muse Spark
80
Sakana Fugu Ultra
100
Pick Sakana Fugu Ultra if you want the stronger benchmark profile. Muse Spark only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Agentic
+23.1 difference
Coding
+21.8 difference
Knowledge
+45.1 difference
Muse Spark
Sakana Fugu Ultra
N/A
$5 / $30
N/A
N/A
N/A
N/A
262K
1M
Pick Sakana Fugu Ultra if you want the stronger benchmark profile. Muse Spark only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Sakana Fugu Ultra is clearly ahead on the provisional aggregate, 100 to 80. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Sakana Fugu Ultra's sharpest advantage is in knowledge, where it averages 95.5 against 50.4. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 59% to 82.1%.
Sakana Fugu Ultra gives you the larger context window at 1M, compared with 262K for Muse Spark.
Sakana Fugu Ultra is ahead on BenchLM's provisional leaderboard, 100 to 80. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 59% and 82.1%.
Sakana Fugu Ultra has the edge for knowledge tasks in this comparison, averaging 95.5 versus 50.4. Inside this category, GPQA-D is the benchmark that creates the most daylight between them.
Sakana Fugu Ultra has the edge for coding in this comparison, averaging 83.5 versus 61.7. Inside this category, SWE-bench Pro is the benchmark that creates the most daylight between them.
Sakana Fugu Ultra has the edge for agentic tasks in this comparison, averaging 82.1 versus 59. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
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