Pareto 26.9 leads on quality and agent time: 11.3 points higher and 1.3× faster; DeepSeek V4.1 Flash leads on cost: 25.4× cheaper.
Stet score
DeepSeek V4.1 FlashRank 9 of 14
47.895% range 37.5–58.0
Pareto 26.9Rank 5 of 14
59.195% range 48.8–69.211.3 points higher
DeepSeek V4.1 Flash solved 2 tasks that Pareto 26.9 didn’t, and Pareto 26.9 solved 3 that DeepSeek V4.1 Flash didn’t. Both solved 10; neither solved 9.
stet-commit-5d766ddePassed testsstet-commit-342d0ac0Equivalent to the merged fixstet-6f84e978Passed testsstet-commit-f8ae1177Passed testsstet-2450ca2dPassed testsA 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.
| Task | DeepSeek V4.1 Flash | Pareto 26.9 | Solved by |
|---|---|---|---|
stet-3169aefa | Passed tests | Passed tests | Both |
stet-89dfbc27 | Passed tests | Passed tests | Both |
stet-b28f4fe7 | Passed tests | Passed tests | Both |
stet-232b50ba | Passed tests | Passed tests | Both |
stet-5276aa3f | Passed tests | Passed tests | Both |
stet-commit-bbbbae09 | Passed tests | Passed tests | Both |
stet-15439c21 | Passed tests | Passed tests | Both |
stet-66762b4c | Passed tests | Passed tests | Both |
stet-commit-f0caded9 | Passed tests | Equivalent to the merged fix | Both |
stet-commit-5d766dde | Passed tests | Failed | DeepSeek V4.1 Flash only |
stet-43493c52 | Passed tests | Passed tests | Both |
stet-6f84e978 | Failed | Passed tests | Pareto 26.9 only |
stet-commit-f8ae1177 | Failed | Passed tests | Pareto 26.9 only |
stet-2450ca2d | Failed | Passed tests | Pareto 26.9 only |
stet-commit-342d0ac0 | Equivalent to the merged fix | Failed | DeepSeek V4.1 Flash only |
stet-commit-60a0e6c2 | Failed | Failed | Neither |
stet-commit-5e075641 | Failed | Failed | Neither |
stet-commit-2826765e | Failed | Failed | Neither |
stet-commit-a8716b88 | Failed | Failed | Neither |
stet-commit-30506f8e | Failed | Failed | Neither |
stet-commit-87814583 | Failed | Failed | Neither |
stet-commit-d2ab0c25 | Failed | Failed | Neither |
stet-commit-e41c2e2d | Failed | Failed | Neither |
stet-commit-e928166f | Failed | Failed | Neither |
| Metric | DeepSeek V4.1 Flash | Pareto 26.9 |
|---|---|---|
| Rank | 9 of 14 | 5 of 14 |
| Stet score | 47.895% range 37.5–58.0 | 59.195% range 48.8–69.2 |
| Solved | 12/2411 passed, 1 judged equivalent | 13/2412 passed, 1 judged equivalent |
| Passed review | 8/24 | 8/24 |
| Matched merged change | 10/231 not recorded | 9/24 |
| Cost / task | $0.49from 23/24 tasks | $12.47 |
| How cost was recorded | estimated from tokens on 23, not recorded on 1 | reported by its harness on 23, estimated from tokens on 1 |
| Agent time / task | 49.3 min | 39.2 min |
| Ran in | Daytona sandbox | Daytona sandbox |
The leaderboard’s readings on groups of tasks. Each group holds fewer tasks than the overall standings, so treat these as leads to test on your repo.
11 tasks
11 tasks whose merged change was 2–149 lines in 1–2 files. The 7 small fixes below are among them.
Both matched the merged change on 7 of 11.
DeepSeek V4.1 Flash passed review more often: 8 of 11 to Pareto 26.9’s 7.
| DeepSeek V4.1 Flash | Pareto 26.9 | |
|---|---|---|
| Matched merged change | 7/11 | 7/11 |
| Passed review | 8/11 | 7/11 |
| Cost / task | $0.21 | $5.74 |
| Agent time / task | 34.9 min | 29.4 min |
7 tasks
7 tasks whose instructions start with “Fix”. Their merged changes were 4–29 lines in 1–2 files.
DeepSeek V4.1 Flash matched the merged change more often: 5 of 7 to Pareto 26.9’s 4.
| DeepSeek V4.1 Flash | Pareto 26.9 | |
|---|---|---|
| Matched merged change | 5/7 | 4/7 |
| Passed review | 6/7 | 5/7 |
| Cost / task | $0.19 | $5.42 |
| Agent time / task | 34.6 min | 30.6 min |
13 tasks
13 tasks whose merged change ran over 150 lines or more than 3 files: 113–1,420 lines in 2–19 files.
| DeepSeek V4.1 Flash | Pareto 26.9 | |
|---|---|---|
| Matched merged change | 3/121 not recorded | 2/13 |
| Passed review | 0/13 | 1/13 |
| Cost / task | $0.751 not recorded | $18.18 |
| Agent time / task | 61.5 min | 47.4 min |
Stet replays your merged PRs, scores quality above pass/fail, and delivers comparison reports through your agent.
Run it on your repocompare-n24-r3b.