Pencil Puzzle Bench - Firefly: leaderboard

Models draw Firefly paths from directional clues, coordinating path lengths and grid constraints without crossings. 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 March 2027. 51 models tracked.

Top models

#ModelScoreOverall rank
1GPT-5.2 (xHigh)33.33#110 (GPT-5.2)
2Claude Opus 4.6 (Thinking)20#63 (Claude Opus 4.6)
3GPT-5.2 (High)13.33#110 (GPT-5.2)
4Gemini 3.1 Pro (Preview)6.67#58
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-firefly · How It Works · Data refreshed daily, snapshot 2026-10-20.