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GPT 6 Luna max vs Muse Wonder Full low

No clear quality winner: Muse Wonder Full low won 14, GPT 6 Luna max won 4, 2 tied, 4 undecided; Muse Wonder Full low leads on agent time: 2.8× faster; Muse Wonder Full low’s cost wasn’t recorded.

24 tasksData from

Stet score

GPT 6 Luna maxcodex · max reasoningRank 9 of 16

49.295% range 39.6–58.4

Muse Wonder Full lowmuse · low reasoningRank 1 of 16

72.495% range 60.4–83.323.2 points higher

Their 95% score ranges don’t overlap.

Cost / task

GPT 6 Luna max$0.37
Muse Wonder Full lownot recorded

Agent time / task

GPT 6 Luna max59.7 min
Muse Wonder Full low21.6 min2.8× faster

Quality

Head-to-head matchups

GPT 6 Luna max won4

Tied24 undecided

Muse Wonder Full low won14

Muse Wonder Full low’s win share 74%, 95% range 56–90%Ties are within judge noise.

Task by task

GPT 6 Luna max solved 1 task that Muse Wonder Full low didn’t, and Muse Wonder Full low solved 3 that GPT 6 Luna max didn’t. Both solved 9; neither solved 7.

GPT 6 Luna max only 1

  • stet-commit-342d0ac0Equivalent to the merged fix

Muse Wonder Full low only 3

  • stet-15439c21Passed tests
  • 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 Luna maxMuse 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-66762b4cEquivalent to the merged fixEquivalent to the merged fixBoth
stet-15439c21FailedPassed testsMuse Wonder Full low only
stet-commit-5d766ddeEquivalent to the merged fixEquivalent to the merged fixBoth
stet-43493c52Passed testsPassed testsBoth
stet-6f84e978FailedFailedNeither
stet-2450ca2dFailedPassed testsMuse Wonder Full low only
stet-commit-342d0ac0Equivalent to the merged fixFailedGPT 6 Luna max 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 Luna maxMuse Wonder Full low
Harnesscodexmuse
Reasoning effortmaxlow
Rank9 of 161 of 16
Stet score49.295% range 39.6–58.472.495% range 60.4–83.3
Solved12/248 passed, 4 judged equivalent12/249 passed, 3 judged equivalent
Cost / task$0.37not recorded
Agent time / task59.7 min21.6 min

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