OpenAI GPT-4.1 31.1% epoch.ai for GPT-4.1 on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 31, 2026 at 10:01 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-4.1 on SimpleQA Verified Original — Epoch AI harness 10002 OpenAI OpenAI o3 (high)49.4% epoch.ai for OpenAI o3 (high) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:28 PM UTC Benchmark leaderboard Epoch AI Independent Record for OpenAI o3 on SimpleQA Verified Original — Epoch AI harness 10003 OpenAI OpenAI o4-mini (high)18.8% epoch.ai for OpenAI o4-mini (high) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:28 PM UTC Benchmark leaderboard Epoch AI Independent Record for OpenAI o4-mini on SimpleQA Verified Original — Epoch AI harness 10004 OpenAI OpenAI o4-mini (low)19.6% epoch.ai for OpenAI o4-mini (low) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:29 PM UTC Benchmark leaderboard Epoch AI Independent Record for OpenAI o4-mini on SimpleQA Verified Original — Epoch AI harness 10004 OpenAI GPT-6 Astra (max)75.6% epoch.ai for GPT-6 Astra (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 30, 2026 at 2:57 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-6 Astra on SimpleQA Verified Original — Epoch AI harness 10005 OpenAI GPT-5.4 (xhigh)45.1% epoch.ai for GPT-5.4 (xhigh) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:28 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.4 on SimpleQA Verified Original — Epoch AI harness 10007 OpenAI GPT-5.5 (xhigh)63.0% epoch.ai for GPT-5.5 (xhigh) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:28 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.5 on SimpleQA Verified Original — Epoch AI harness 10008 OpenAI GPT-5.6 Luna (max)41.0% epoch.ai for GPT-5.6 Luna (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 10, 2026 at 11:44 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.6 Luna on SimpleQA Verified Original — Epoch AI harness 10009 OpenAI GPT-5.6 Sol (max)69.7% epoch.ai for GPT-5.6 Sol (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 10, 2026 at 11:44 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.6 Sol on SimpleQA Verified Original — Epoch AI harness 10010 OpenAI GPT-5.6 Terra (max)43.2% epoch.ai for GPT-5.6 Terra (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 10, 2026 at 11:44 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.6 Terra on SimpleQA Verified Original — Epoch AI harness 10011 OpenAI GPT-5.2 (xhigh)37.1% epoch.ai for GPT-5.2 (xhigh) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:27 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.2 on SimpleQA Verified Original — Epoch AI harness 10012 OpenAI GPT-5.2 (low)32.8% epoch.ai for GPT-5.2 (low) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:29 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.2 on SimpleQA Verified Original — Epoch AI harness 10012 OpenAI GPT-5.2 (high)34.3% epoch.ai for GPT-5.2 (high) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:28 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.2 on SimpleQA Verified Original — Epoch AI harness 10012 OpenAI GPT-5.2 (medium)32.7% epoch.ai for GPT-5.2 (medium) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:29 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.2 on SimpleQA Verified Original — Epoch AI harness 10012 OpenAI GPT-6 Luna (max)41.4% epoch.ai for GPT-6 Luna (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated September 22, 2026 at 10:14 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-6 Luna on SimpleQA Verified Original — Epoch AI harness 10013 OpenAI GPT-6 Sol (max)60.7% epoch.ai for GPT-6 Sol (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated September 22, 2026 at 7:59 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-6 Sol on SimpleQA Verified Original — Epoch AI harness 10014 OpenAI GPT-6.1 Sol (max)73.9% epoch.ai for GPT-6.1 Sol (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated September 29, 2026 at 10:00 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-6.1 Sol on SimpleQA Verified Original — Epoch AI harness 10015 OpenAI GPT-4.1 mini 12.7% epoch.ai for GPT-4.1 mini on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 31, 2026 at 10:01 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-4.1 mini on SimpleQA Verified Original — Epoch AI harness 10016 OpenAI GPT-4.1 nano 6.0% epoch.ai for GPT-4.1 nano on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 31, 2026 at 10:01 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-4.1 nano on SimpleQA Verified Original — Epoch AI harness 10017 OpenAI GPT-5 (high)50.1% epoch.ai for GPT-5 (high) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:28 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5 on SimpleQA Verified Original — Epoch AI harness 10018 OpenAI GPT-5 mini (high)21.6% epoch.ai for GPT-5 mini (high) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 10, 2026 at 9:35 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5 mini on SimpleQA Verified Original — Epoch AI harness 10019 OpenAI GPT-5 nano (high)11.7% epoch.ai for GPT-5 nano (high) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 10, 2026 at 9:35 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5 nano on SimpleQA Verified Original — Epoch AI harness 10020 OpenAI GPT-5.4 mini (high)29.4% epoch.ai for GPT-5.4 mini (high) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:28 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.4 mini on SimpleQA Verified Original — Epoch AI harness 10021 OpenAI GPT-5.4 nano (high)11.7% epoch.ai for GPT-5.4 nano (high) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:28 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.4 nano on SimpleQA Verified Original — Epoch AI harness 10022 DeepSeek AI DeepSeek-V4-Pro (max)47.0% epoch.ai for DeepSeek-V4-Pro (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:30 PM UTC Benchmark leaderboard Epoch AI Independent Record for DeepSeek-V4-Pro on SimpleQA Verified Original — Epoch AI harness 110002 Moonshot AI Kimi K2.5 34.3% epoch.ai for Kimi K2.5 on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:35 PM UTC Benchmark leaderboard Epoch AI Independent Record for Kimi K2.5 on SimpleQA Verified Original — Epoch AI harness 120001 Moonshot AI Kimi K2.6 34.9% epoch.ai for Kimi K2.6 on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 10, 2026 at 9:35 PM UTC Benchmark leaderboard Epoch AI Independent Record for Kimi K2.6 on SimpleQA Verified Original — Epoch AI harness 120002 Moonshot AI Kimi K3 (max)50.6% epoch.ai for Kimi K3 (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:36 PM UTC Benchmark leaderboard Epoch AI Independent Record for Kimi K3 on SimpleQA Verified Original — Epoch AI harness 120003 Alibaba (Tongyi) Qwen3.6-Plus 44.1% epoch.ai for Qwen3.6-Plus on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:34 PM UTC Benchmark leaderboard Epoch AI Independent Record for Qwen3.6-Plus on SimpleQA Verified Original — Epoch AI harness 130004 Alibaba (Tongyi) Qwen3.7-Max 55.8% epoch.ai for Qwen3.7-Max on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:34 PM UTC Benchmark leaderboard Epoch AI Independent Record for Qwen3.7-Max on SimpleQA Verified Original — Epoch AI harness 130006 Alibaba (Tongyi) Qwen3.8-Max (xhigh)45.8% epoch.ai for Qwen3.8-Max (xhigh) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:30 PM UTC Benchmark leaderboard Epoch AI Independent Record for Qwen3.8-Max on SimpleQA Verified Original — Epoch AI harness 130008 Z.ai GLM-4.7 32.2% epoch.ai for GLM-4.7 on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:36 PM UTC Benchmark leaderboard Epoch AI Independent Record for GLM-4.7 on SimpleQA Verified Original — Epoch AI harness 150001 Z.ai GLM-5.1 34.0% epoch.ai for GLM-5.1 on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:36 PM UTC Benchmark leaderboard Epoch AI Independent Record for GLM-5.1 on SimpleQA Verified Original — Epoch AI harness 150003 Z.ai GLM-5.2 (max)34.2% epoch.ai for GLM-5.2 (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:36 PM UTC Benchmark leaderboard Epoch AI Independent Record for GLM-5.2 on SimpleQA Verified Original — Epoch AI harness 150004 Z.ai GLM-5.3 (max)41.0% epoch.ai for GLM-5.3 (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 28, 2026 at 5:00 PM UTC Benchmark leaderboard Epoch AI Independent Record for GLM-5.3 on SimpleQA Verified Original — Epoch AI harness 150005 Thinking Machines Lab Inkling (xhigh)40.3% epoch.ai for Inkling (xhigh) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:36 PM UTC Benchmark leaderboard Epoch AI Independent Record for Inkling on SimpleQA Verified Original — Epoch AI harness 160001 Thinking Machines Lab Inkling-Small (xhigh)19.1% epoch.ai for Inkling-Small (xhigh) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:36 PM UTC Benchmark leaderboard Epoch AI Independent Record for Inkling-Small on SimpleQA Verified Original — Epoch AI harness 160002 Anthropic Claude Fable 5.1 (max)70.8% epoch.ai for Claude Fable 5.1 (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated September 1, 2026 at 6:31 PM UTC Benchmark leaderboard Epoch AI Independent Record for Claude Fable 5.1 on SimpleQA Verified Original — Epoch AI harness 20004 Anthropic Claude Sonnet 4.5 23.7% epoch.ai for Claude Sonnet 4.5 on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 10, 2026 at 10:42 PM UTC Benchmark leaderboard Epoch AI Independent Record for Claude Sonnet 4.5 on SimpleQA Verified Original — Epoch AI harness 20005 Anthropic Claude Haiku 4.5 13.2% epoch.ai for Claude Haiku 4.5 on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 10, 2026 at 9:26 PM UTC Benchmark leaderboard Epoch AI Independent Record for Claude Haiku 4.5 on SimpleQA Verified Original — Epoch AI harness 20006 Anthropic Claude Opus 4.6 (max)47.0% epoch.ai for Claude Opus 4.6 (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:27 PM UTC Benchmark leaderboard Epoch AI Independent Record for Claude Opus 4.6 on SimpleQA Verified Original — Epoch AI harness 20008 Anthropic Claude Sonnet 4.6 (max)32.8% epoch.ai for Claude Sonnet 4.6 (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:27 PM UTC Benchmark leaderboard Epoch AI Independent Record for Claude Sonnet 4.6 on SimpleQA Verified Original — Epoch AI harness 20009 Anthropic Claude Sonnet 4.6 (high)35.5% epoch.ai for Claude Sonnet 4.6 (high) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 10, 2026 at 10:42 PM UTC Benchmark leaderboard Epoch AI Independent Record for Claude Sonnet 4.6 on SimpleQA Verified Original — Epoch AI harness 20009 Anthropic Claude Opus 4.7 (xhigh)51.7% epoch.ai for Claude Opus 4.7 (xhigh) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:27 PM UTC Benchmark leaderboard Epoch AI Independent Record for Claude Opus 4.7 on SimpleQA Verified Original — Epoch AI harness 20010 Anthropic Claude Opus 4.8 (max)53.0% epoch.ai for Claude Opus 4.8 (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:27 PM UTC Benchmark leaderboard Epoch AI Independent Record for Claude Opus 4.8 on SimpleQA Verified Original — Epoch AI harness 20011 Anthropic Claude Fable 5 (xhigh)70.7% epoch.ai for Claude Fable 5 (xhigh) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 10, 2026 at 11:44 PM UTC Benchmark leaderboard Epoch AI Independent Record for Claude Fable 5 on SimpleQA Verified Original — Epoch AI harness 20012 Anthropic Claude Sonnet 5 (max)33.7% epoch.ai for Claude Sonnet 5 (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:27 PM UTC Benchmark leaderboard Epoch AI Independent Record for Claude Sonnet 5 on SimpleQA Verified Original — Epoch AI harness 20013 Anthropic Claude Sonnet 5 (xhigh)32.9% epoch.ai for Claude Sonnet 5 (xhigh) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 27, 2026 at 7:28 PM UTC Benchmark leaderboard Epoch AI Independent Record for Claude Sonnet 5 on SimpleQA Verified Original — Epoch AI harness 20013 Anthropic Claude Opus 5 (max)59.9% epoch.ai for Claude Opus 5 (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 10, 2026 at 11:44 PM UTC Benchmark leaderboard Epoch AI Independent Record for Claude Opus 5 on SimpleQA Verified Original — Epoch AI harness 20014 Anthropic Claude Opus 5.5 (max)72.2% epoch.ai for Claude Opus 5.5 (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated September 22, 2026 at 6:27 PM UTC Benchmark leaderboard Epoch AI Independent Record for Claude Opus 5.5 on SimpleQA Verified Original — Epoch AI harness 20015