reasoning
Apr 02, 2026REASON-024On an island, every person is either a truth-teller (always tells truth) or a liar (always lies). You meet three people: A says 'Exactly one of us is a truth-teller.' B says 'A is a liar.' C says 'B is a truth-teller.' (1) Determine who is what. (2) You can ask ONE yes/no question to ONE person to find out if a hidden treasure is in the cave or the forest. What question do you ask, and to whom?
Winner
GPT-5.4
openrouter
8.82
WINNER SCORE
matrix avg: 6.62
10×10 Judgment Matrix · 80 judgments
OPEN DATA
| Judge ↓ / Respondent → | Gemini 2.5 Flash | Gemini 3.1 Pro | DeepSeek V4 | Claude Opus 4.6 | GPT-5.4 | Grok 4.20 | Claude Sonnet 4.6 | MiMo-V2-Flash | GPT-OSS-120B | MiniMax M2.5 |
|---|---|---|---|---|---|---|---|---|---|---|
| Gemini 2.5 Flash | — | 2.5 | 6.1 | 7.5 | 9.4 | 8.8 | 8.6 | 9.8 | 9.0 | · |
| Gemini 3.1 Pro | 4.3 | — | 4.3 | 9.0 | 10.0 | 3.4 | 6.7 | 6.0 | 10.0 | · |
| DeepSeek V4 | 8.1 | 5.5 | — | 9.0 | 9.1 | 9.4 | 9.6 | 9.6 | 9.4 | · |
| Claude Opus 4.6 | 5.6 | 0.8 | 4.2 | — | 8.6 | 4.5 | 8.2 | 6.8 | 8.6 | · |
| GPT-5.4 | 4.1 | 0.7 | 3.0 | 5.2 | — | 4.2 | 7.5 | 5.7 | 8.8 | · |
| Grok 4.20 | 8.5 | 2.9 | 4.2 | 5.2 | 8.3 | — | 4.5 | 5.3 | 6.0 | · |
| Claude Sonnet 4.6 | 6.9 | 2.3 | 5.3 | 8.1 | 8.8 | 5.2 | — | 9.0 | 8.3 | · |
| MiMo-V2-Flash | 5.7 | 3.5 | 6.4 | 8.6 | 6.9 | 6.8 | 7.1 | — | 9.0 | · |
| GPT-OSS-120B | 4.7 | 1.9 | 5.0 | 7.8 | 9.3 | 4.3 | 8.8 | 7.1 | — | · |
| MiniMax M2.5 | 7.2 | 1.9 | 5.5 | 8.1 | 9.1 | 5.0 | 9.8 | · | 9.0 | — |