Kev 4B
Jared Palmer · jaredpalmer/kev-4b · added 20 Oct 2026
Kev 4B by Jared Palmer ranks #12 of 17 AI decision models on the DecisionBench Sudoku benchmark (logical reasoning), with accuracy 77.0%. View on OpenRouter.
- Sudoku rank
- #12 of 17
- Accuracy
- 77.0%
- Solved
- 20/20
- Mistakes / puzzle
- 15.1
- Solve time / puzzle
- 25s
- Cost / puzzle
- $0.003505
By difficulty
| Difficulty | Rank | Accuracy | Solved | Mistakes | Solve time | Cost |
|---|---|---|---|---|---|---|
| Easy | #14 | 85.1% | 5/5 | 7.2 | 12s | $0.001929 |
| Medium | #14 | 78.5% | 5/5 | 13.4 | 17s | $0.003191 |
| Hard | #14 | 74.6% | 5/5 | 18.4 | 47s | $0.004181 |
| Expert | #11 | 73.0% | 5/5 | 21.2 | 25s | $0.004718 |
Every race
| Puzzle | Mistakes | Calls | Solve time | Cost | Status |
|---|---|---|---|---|---|
| easy-01 | 5 | 17 | 11s | $0.001734 | Solved |
| easy-02 | 7 | 19 | 13s | $0.001852 | Solved |
| easy-03 | 8 | 19 | 11s | $0.001942 | Solved |
| easy-04 | 7 | 19 | 12s | $0.001887 | Solved |
| easy-05 | 9 | 21 | 12s | $0.002228 | Solved |
| medium-01 | 16 | 28 | 18s | $0.003410 | Solved |
| medium-02 | 11 | 26 | 15s | $0.003106 | Solved |
| medium-03 | 7 | 22 | 15s | $0.002429 | Solved |
| medium-04 | 13 | 26 | 16s | $0.002981 | Solved |
| medium-05 | 20 | 32 | 20s | $0.004026 | Solved |
| hard-01 | 19 | 32 | 22s | $0.004187 | Solved |
| hard-02 | 15 | 30 | 19s | $0.003774 | Solved |
| hard-03 | 17 | 31 | 85s | $0.003904 | Solved |
| hard-04 | 27 | 39 | 89s | $0.005388 | Solved |
| hard-05 | 14 | 29 | 18s | $0.003654 | Solved |
| expert-01 | 23 | 37 | 26s | $0.004996 | Solved |
| expert-02 | 30 | 45 | 32s | $0.006361 | Solved |
| expert-03 | 18 | 33 | 23s | $0.004233 | Solved |
| expert-04 | 22 | 35 | 24s | $0.004619 | Solved |
| expert-05 | 13 | 27 | 17s | $0.003380 | Solved |