OpenAI GPT-4.5 Preview 5.4% labs.scale.com for GPT-4.5 Preview on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for GPT-4.5 Preview on Humanity's Last Exam Full set — Scale AI evaluation 10001 OpenAI GPT-4.1 5.4% labs.scale.com for GPT-4.1 on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for GPT-4.1 on Humanity's Last Exam Full set — Scale AI evaluation 10002 OpenAI OpenAI o3 (medium)19.2% labs.scale.com for OpenAI o3 (medium) on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for OpenAI o3 on Humanity's Last Exam Full set — Scale AI evaluation 10003 OpenAI OpenAI o3 (high)20.3% labs.scale.com for OpenAI o3 (high) on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for OpenAI o3 on Humanity's Last Exam Full set — Scale AI evaluation 10003 OpenAI OpenAI o4-mini (high)18.1% labs.scale.com for OpenAI o4-mini (high) on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for OpenAI o4-mini on Humanity's Last Exam Full set — Scale AI evaluation 10004 OpenAI OpenAI o4-mini (medium)14.3% labs.scale.com for OpenAI o4-mini (medium) on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for OpenAI o4-mini on Humanity's Last Exam Full set — Scale AI evaluation 10004 OpenAI GPT-6 Astra 54.8% labs.scale.com for GPT-6 Astra on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for GPT-6 Astra on Humanity's Last Exam Full set — Scale AI evaluation 10005 OpenAI GPT-5.4 (xhigh thinking)36.2% labs.scale.com for GPT-5.4 (xhigh thinking) on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for GPT-5.4 on Humanity's Last Exam Full set — Scale AI evaluation 10007 OpenAI GPT-5.2 27.8% labs.scale.com for GPT-5.2 on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for GPT-5.2 on Humanity's Last Exam Full set — Scale AI evaluation 10012 OpenAI GPT-5 25.3% labs.scale.com for GPT-5 on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for GPT-5 on Humanity's Last Exam Full set — Scale AI evaluation 10018 OpenAI GPT-5 mini 19.4% labs.scale.com for GPT-5 mini on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for GPT-5 mini on Humanity's Last Exam Full set — Scale AI evaluation 10019 Moonshot AI Kimi K2.5 24.4% labs.scale.com for Kimi K2.5 on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Kimi K2.5 on Humanity's Last Exam Full set — Scale AI evaluation 120001 Z.ai GLM-4.5 8.3% labs.scale.com for GLM-4.5 on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for GLM-4.5 on Humanity's Last Exam Full set — Scale AI evaluation 150007 Z.ai GLM-4.5-Air 8.1% labs.scale.com for GLM-4.5-Air on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for GLM-4.5-Air on Humanity's Last Exam Full set — Scale AI evaluation 150008 Anthropic Claude 3.7 Sonnet (Thinking)8.0% labs.scale.com for Claude 3.7 Sonnet (Thinking) on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Claude 3.7 Sonnet on Humanity's Last Exam Full set — Scale AI evaluation 20001 Anthropic Claude Opus 4 6.7% labs.scale.com for Claude Opus 4 on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Claude Opus 4 on Humanity's Last Exam Full set — Scale AI evaluation 20002 Anthropic Claude Opus 4 (Thinking)10.7% labs.scale.com for Claude Opus 4 (Thinking) on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Claude Opus 4 on Humanity's Last Exam Full set — Scale AI evaluation 20002 Anthropic Claude Sonnet 4 (Thinking)7.8% labs.scale.com for Claude Sonnet 4 (Thinking) on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Claude Sonnet 4 on Humanity's Last Exam Full set — Scale AI evaluation 20003 Anthropic Claude Sonnet 4 5.5% labs.scale.com for Claude Sonnet 4 on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Claude Sonnet 4 on Humanity's Last Exam Full set — Scale AI evaluation 20003 Anthropic Claude Fable 5.1 (xhigh)46.5% labs.scale.com for Claude Fable 5.1 (xhigh) on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Claude Fable 5.1 on Humanity's Last Exam Full set — Scale AI evaluation 20004 Anthropic Claude Sonnet 4.5 (thinking)13.7% labs.scale.com for Claude Sonnet 4.5 (thinking) on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Claude Sonnet 4.5 on Humanity's Last Exam Full set — Scale AI evaluation 20005 Anthropic Claude Sonnet 4.5 7.5% labs.scale.com for Claude Sonnet 4.5 on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Claude Sonnet 4.5 on Humanity's Last Exam Full set — Scale AI evaluation 20005 Anthropic Claude Opus 4.5 14.2% labs.scale.com for Claude Opus 4.5 on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Claude Opus 4.5 on Humanity's Last Exam Full set — Scale AI evaluation 20007 Anthropic Claude Opus 4.5 (thinking)25.2% labs.scale.com for Claude Opus 4.5 (thinking) on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Claude Opus 4.5 on Humanity's Last Exam Full set — Scale AI evaluation 20007 Anthropic Claude Opus 4.6 (Non-Thinking)19.0% labs.scale.com for Claude Opus 4.6 (Non-Thinking) on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Claude Opus 4.6 on Humanity's Last Exam Full set — Scale AI evaluation 20008 Anthropic Claude Opus 4.6 (thinking-max)34.4% labs.scale.com for Claude Opus 4.6 (thinking-max) on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Claude Opus 4.6 on Humanity's Last Exam Full set — Scale AI evaluation 20008 Anthropic Claude Opus 4.7 36.2% labs.scale.com for Claude Opus 4.7 on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Claude Opus 4.7 on Humanity's Last Exam Full set — Scale AI evaluation 20010 Anthropic Claude Opus 4.1 7.9% labs.scale.com for Claude Opus 4.1 on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Claude Opus 4.1 on Humanity's Last Exam Full set — Scale AI evaluation 20017 Anthropic Claude Opus 4.1 (thinking)11.5% labs.scale.com for Claude Opus 4.1 (thinking) on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Claude Opus 4.1 on Humanity's Last Exam Full set — Scale AI evaluation 20017 Google (DeepMind) Gemini 2.5 Pro 18.2% labs.scale.com for Gemini 2.5 Pro on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Gemini 2.5 Pro on Humanity's Last Exam Full set — Scale AI evaluation 30002 Google (DeepMind) Gemini 2.5 Flash 12.1% labs.scale.com for Gemini 2.5 Flash on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Gemini 2.5 Flash on Humanity's Last Exam Full set — Scale AI evaluation 30003 Google (DeepMind) Gemini 3.8 Flash 44.5% labs.scale.com for Gemini 3.8 Flash on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Gemini 3.8 Flash on Humanity's Last Exam Full set — Scale AI evaluation 30004 Google (DeepMind) Gemini 3.1 Pro (thinking high)46.4% labs.scale.com for Gemini 3.1 Pro (thinking high) on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Gemini 3.1 Pro on Humanity's Last Exam Full set — Scale AI evaluation 30005 Google (DeepMind) Gemini 3 Pro 37.5% labs.scale.com for Gemini 3 Pro on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Gemini 3 Pro on Humanity's Last Exam Full set — Scale AI evaluation 30008 Meta AI (originally Facebook AI Research) Muse Spark 40.6% labs.scale.com for Muse Spark on Humanity's Last Exam Full set — Scale AI evaluation (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 3, 2026 Benchmark leaderboard Scale AI Independent Record for Muse Spark on Humanity's Last Exam Full set — Scale AI evaluation 80001