SUDOKU BENCHMARK ยท STEADY

Claude Opus 5.5 on Steady grid 5

Solved: 53 of 53 blank cells right. It said it was 99% sure. All of Claude Opus 5.5's answers.

RESULTSolved
CELLS RIGHT53 / 53
SAID99% sure
MODEL TIME1.5 min
COST$0.227 (API-equivalent)
TOKENS IN / OUT908 / 11,004

5 given 5 filled correctly 53 wrong, with the right digit 3 left empty

The end of its reply

<grid>
963712845
521438697
784569231
652347918
498251376
317986524
246195783
175823469
839674152
</grid>
<confidence>99</confidence>

Grid steady-4 of set v1, 28 givens. Puzzle as one line: .63..2..552.4...9.7.....2......479..4.......6..798......6.....3.7...3.698..6..15.