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Chess puzzles — Epoch AI

Chess puzzles — Epoch AI is run by Epoch AI. It has ranked 154 models, of which the catalogue holds 81, scoring from 0 to 100.

measured by Epoch AI · the board itself

PlaceModelMetricScore
2ndof 154GPT 6 Astramean_score (max)74
4thof 154GPT 6.1 Solmean_score (max)68
5thof 154Claude Opus 5.5mean_score (max)67
6thof 154Gemini 3.7 Flashmean_score (high)66
7thof 154GPT-5.5mean_score (xhigh)63
8thof 154GPT-5.5 Promean_score (xhigh)62
9thof 154GPT-5.2 Promean_score (xhigh)60
10thof 154GPT-5.4 Promean_score (xhigh)59
11thof 154Gemini 4 Argonmean_score (high)59
12thof 154GPT-5.6 Solmean_score (max)59
13thof 154Claude Sonnet 5.5mean_score (max)59
14thof 154Gemini 3.8 Flashmean_score (high)58
15thof 154GPT 6 Solmean_score (max)56
16thof 154Claude Haiku 5.5mean_score (max)55
17thof 154Claude Opus 4.8mean_score (max)52
18thof 154Gemini 3.1 Pro Previewmean_score (high)51
19thof 154GPT-5.2mean_score (xhigh)48
20thof 154GPT-5 Promean_score (high)48
21stof 154GPT-5.4mean_score (xhigh)48
22ndof 154Claude Fable 5.1mean_score (max)48
23rdof 154DeepSeek V4.1 Flashmean_score (max)48
24thof 154GPT-5.6 Terramean_score (max)47
25thof 154Claude Fable 5mean_score (max)47
26thof 154DeepSeek V4.1 Flash 1017mean_score (max)46
27thof 154Qwen 3.8 Maxmean_score (xhigh)46
28thof 154DeepSeek V4 Pro 0813mean_score (max)46
29thof 154GPT-5.4 nanomean_score (xhigh)45
31stof 154Gemini 3.5 Flashmean_score (high)45
33rdof 154Claude Sonnet 5mean_score (max)45
34thof 154GPT-5.6 Lunamean_score (max)43
35thof 154Claude Opus 5mean_score (max)43
36thof 154GPT-5.1mean_score (high)42
39thof 154Gemini 3.6 Flashmean_score (low)42
40thof 154Claude Opus 4.7mean_score (max)41
41stof 154Grok 4.7mean_score (xhigh)41
43rdof 154Gemini 3 Flashmean_score (high)39
44thof 154GLM-5.3mean_score (max)37
45thof 154Kimi K3mean_score (high)37
46thof 154o3mean_score (medium)37
48thof 154Muse Spark 1.3mean_score (max)37
53rdof 154GPT-5mean_score (high)36
56thof 154GPT 6 Lunamean_score (max)36
58thof 154Grok 4.5mean_score (high)35
60thof 154Muse Spark 1.1mean_score (xhigh)34
63rdof 154Grok 4.6mean_score (xhigh)33
66thof 154DeepSeek V4 Flash (0731)mean_score (max)32
71stof 154Grok 4.20mean_score29
76thof 154Muse Spark 1.2mean_score (xhigh)27
80thof 154Qwen3.7 Maxmean_score (max)26
81stof 154GPT-5 minimean_score (high)24
83rdof 154GPT-5.4 minimean_score (high)23
84thof 154Claude Sonnet 4.6mean_score (max)23
85thof 154GLM 5.2mean_score (max)22
86thof 154o4-minimean_score (medium)22
87thof 154GPT-5 nanomean_score (high)22
89thof 154GLM-4.7mean_score21
90thof 154GLM 5.3 Flashmean_score (max)21
91stof 154Claude Opus 4.6mean_score (max)21
92ndof 154Gemini 3.5 Flash-Litemean_score (low)21
93rdof 154Inklingmean_score (xhigh)21
94thof 154GLM 5.1mean_score20
95thof 154Kimi K2.6mean_score20
99thof 154DeepSeek V4 Promean_score (max)19
104thof 154Grok 4.3mean_score (high)18
110thof 154o3-minimean_score (high)15
114thof 154Kimi K2.7 Codemean_score14
115thof 154Claude Opus 4.5mean_score14
116thof 154Qwen3.5-Flashmean_score14
117thof 154Qwen3.6 Plusmean_score14
119thof 154MiniMax M3mean_score13
120thof 154Qwen3.6-Flashmean_score12
122ndof 154o1mean_score (high)10
124thof 154Claude Sonnet 4.5mean_score10
129thof 154Claude Haiku 4.5mean_score8
130thof 154Qwen 3.5 Plusmean_score8
134thof 154GPT-4o (2024-08-06)mean_score6
143rdof 154GPT-4o-mini (2024-07-18)mean_score3
144thof 154GPT-4.1 fine-tunedmean_score3
147thof 154Claude 3 Opusmean_score3
152ndof 154GPT-4.1 minimean_score100
153rdof 154GPT-4.1 nanomean_score0

Read from the board on 2026-10-31