Pencil Puzzle Bench - Sudoku: leaderboard

Models fill Sudoku grids so every row, column, and box contains each digit exactly once. Direct-ask exact success fraction for 15fixed golden-300 puzzles of this type; archived DirectAskStrategy_05aaaac9, latest record per source model and puzzle. No agentic or revised strategy cohort mixed.

Metric: Direct-ask Success Rate (%). Source: ppbench.com. Saturation forecast: Around April 2028. 51 models tracked.

Top models

#ModelScoreOverall rank
1GPT-5.2 (xHigh)20#110 (GPT-5.2)
2Gemini 3.1 Pro (Preview)6.67#58
3GPT-5.2 (High)6.67#110 (GPT-5.2)
4GPT-5.2 Pro6.67#61
5GPT-4o0#343
6Gemini 2.5 Pro0#152
7Claude Sonnet 4.60#90
8Claude Sonnet 4.50#142
9GPT-5.20#110
10GPT-4.10#248
11Claude Opus 4.60#63
12GPT-OSS-120B0#341
13Kimi K2.50#144
14DeepSeek V3.20#205
15Qwen 3.5 397B A17B0#146

No result here: #3 Claude Opus 5.5, #6 GPT-6 Astra, #7 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=pencil-puzzle-bench-sudoku · How It Works · Data refreshed daily, snapshot 2026-10-20.