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Muse Wonder Full low vs SWE-2 Max

No clear quality winner: Muse Wonder Full low won 10, SWE-2 Max won 8, 2 tied, 4 undecided; Muse Wonder Full low leads on agent time: 3.2× faster; Muse Wonder Full low’s cost wasn’t recorded; SWE-2 Max’s cost wasn’t recorded.

24 tasksData from

Stet score

Muse Wonder Full lowmuse · low reasoningRank 1 of 16

72.495% range 60.4–83.37.3 points higher

SWE-2 Maxdevin · high reasoningRank 2 of 16

65.195% range 55.2–74.7

A directional read: their 95% score ranges overlap.

Cost / task

Muse Wonder Full lownot recorded
SWE-2 Maxnot recorded

Agent time / task

Muse Wonder Full low21.6 min3.2× faster
SWE-2 Max68.3 min

Quality

Head-to-head matchups

Muse Wonder Full low won10

Tied24 undecided

SWE-2 Max won8

Muse Wonder Full low’s win share 56%, 95% range 35–76%Ties are within judge noise.

Task by task

Muse Wonder Full low solved 2 tasks that SWE-2 Max didn’t, and SWE-2 Max solved 5 that Muse Wonder Full low didn’t. Both solved 10; neither solved 3.

Muse Wonder Full low only 2

  • stet-43493c52Passed tests
  • stet-commit-e928166fEquivalent to the merged fix

SWE-2 Max only 5

  • stet-6f84e978Passed tests
  • stet-commit-342d0ac0Equivalent to the merged fix
  • stet-commit-60a0e6c2Passed tests
  • stet-commit-5e075641Passed tests
  • stet-commit-a8716b88Equivalent to the merged fix

A task counts as solved when its tests passed or a judge found the fix equivalent to the merged change, as in the leaderboard’s Solved column. Stet score also weighs code quality, so it can order the two differently. 4 of the 24 tasks are left out because one of the two has no scored result on them.

All 20 compared tasks
Task by task
TaskMuse Wonder Full lowSWE-2 MaxSolved by
stet-3169aefaPassed testsPassed testsBoth
stet-89dfbc27Passed testsPassed testsBoth
stet-b28f4fe7Passed testsPassed testsBoth
stet-232b50baPassed testsPassed testsBoth
stet-5276aa3fPassed testsPassed testsBoth
stet-commit-bbbbae09Passed testsPassed testsBoth
stet-66762b4cEquivalent to the merged fixPassed testsBoth
stet-15439c21Passed testsEquivalent to the merged fixBoth
stet-commit-5d766ddeEquivalent to the merged fixPassed testsBoth
stet-43493c52Passed testsFailedMuse Wonder Full low only
stet-6f84e978FailedPassed testsSWE-2 Max only
stet-2450ca2dPassed testsPassed testsBoth
stet-commit-342d0ac0FailedEquivalent to the merged fixSWE-2 Max only
stet-commit-60a0e6c2FailedPassed testsSWE-2 Max only
stet-commit-5e075641FailedPassed testsSWE-2 Max only
stet-commit-a8716b88FailedEquivalent to the merged fixSWE-2 Max only
stet-commit-e928166fEquivalent to the merged fixFailedMuse Wonder Full low only
stet-commit-30506f8eFailedFailedNeither
stet-commit-d2ab0c25FailedFailedNeither
stet-commit-e41c2e2dFailedFailedNeither

Side by side

Side by side
MetricMuse Wonder Full lowSWE-2 Max
Harnessmusedevin
Reasoning effortlowhigh
Rank1 of 162 of 16
Stet score72.495% range 60.4–83.365.195% range 55.2–74.7
Solved12/249 passed, 3 judged equivalent16/2413 passed, 3 judged equivalent
Cost / tasknot recordednot recorded
Agent time / task21.6 min68.3 min

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About this data

  • 24 tasks, each a merged change replayed from the repo as it was just before the merge.
  • Data from .
  • Both setups come from the same leaderboard run of 16 setups: bmk_d4ba310fdf50db4ccb2092e3.

See all 16 setups on the leaderboardHow Stet measures