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GPT 6.1 Sol medium vs Muse Wonder Full low

No clear quality winner: Muse Wonder Full low won 11, GPT 6.1 Sol medium won 7, 2 tied, 4 undecided; GPT 6.1 Sol medium leads on agent time: 1.8× faster; Muse Wonder Full low’s cost wasn’t recorded.

24 tasksData from

Stet score

GPT 6.1 Sol mediumcodex · medium reasoningRank 3 of 16

64.195% range 54.3–73.4

Muse Wonder Full lowmuse · low reasoningRank 1 of 16

72.495% range 60.4–83.38.3 points higher

A directional read: their 95% score ranges overlap.

Cost / task

GPT 6.1 Sol medium$1.10
Muse Wonder Full lownot recorded

Agent time / task

GPT 6.1 Sol medium11.8 min1.8× faster
Muse Wonder Full low21.6 min

Quality

Head-to-head matchups

GPT 6.1 Sol medium won7

Tied24 undecided

Muse Wonder Full low won11

Muse Wonder Full low’s win share 60%, 95% range 40–78%Ties are within judge noise.

Task by task

GPT 6.1 Sol medium solved 2 tasks that Muse Wonder Full low didn’t, and Muse Wonder Full low solved 2 that GPT 6.1 Sol medium didn’t. Both solved 10; neither solved 6.

GPT 6.1 Sol medium only 2

  • stet-6f84e978Equivalent to the merged fix
  • stet-commit-342d0ac0Equivalent to the merged fix

Muse Wonder Full low only 2

  • stet-2450ca2dPassed tests
  • stet-commit-e928166fEquivalent 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
TaskGPT 6.1 Sol mediumMuse Wonder Full lowSolved 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-66762b4cPassed testsEquivalent to the merged fixBoth
stet-15439c21Passed testsPassed testsBoth
stet-commit-5d766ddeEquivalent to the merged fixEquivalent to the merged fixBoth
stet-43493c52Passed testsPassed testsBoth
stet-6f84e978Equivalent to the merged fixFailedGPT 6.1 Sol medium only
stet-2450ca2dFailedPassed testsMuse Wonder Full low only
stet-commit-342d0ac0Equivalent to the merged fixFailedGPT 6.1 Sol medium only
stet-commit-60a0e6c2FailedFailedNeither
stet-commit-5e075641FailedFailedNeither
stet-commit-a8716b88FailedFailedNeither
stet-commit-e928166fFailedEquivalent to the merged fixMuse Wonder Full low only
stet-commit-30506f8eFailedFailedNeither
stet-commit-d2ab0c25FailedFailedNeither
stet-commit-e41c2e2dFailedFailedNeither

Side by side

Side by side
MetricGPT 6.1 Sol mediumMuse Wonder Full low
Harnesscodexmuse
Reasoning effortmediumlow
Rank3 of 161 of 16
Stet score64.195% range 54.3–73.472.495% range 60.4–83.3
Solved13/2410 passed, 3 judged equivalent12/249 passed, 3 judged equivalent
Cost / task$1.10not recorded
Agent time / task11.8 min21.6 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