Anthropic Claude Haiku 5.5 (max)45.9% anthropic.com for Claude Haiku 5.5 (max) on Humanity's Last Exam Full set — No tools (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 7, 2026 System card Anthropic Self-reported Record for Claude Haiku 5.5 on Humanity's Last Exam Full set — No tools 20018 Anthropic Claude Sonnet 5.5 (medium)43.2% anthropic.com for Claude Sonnet 5.5 (medium) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported September 28, 2026 System card Anthropic Self-reported Record for Claude Sonnet 5.5 on Humanity's Last Exam Full set — No tools 20016 Anthropic Claude Sonnet 5.5 (max)56.9% anthropic.com for Claude Sonnet 5.5 (max) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported September 28, 2026 System card Anthropic Self-reported Record for Claude Sonnet 5.5 on Humanity's Last Exam Full set — No tools 20016 Anthropic Claude Sonnet 5.5 (low)41.4% anthropic.com for Claude Sonnet 5.5 (low) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported September 28, 2026 System card Anthropic Self-reported Record for Claude Sonnet 5.5 on Humanity's Last Exam Full set — No tools 20016 Anthropic Claude Sonnet 5.5 (high)47.9% anthropic.com for Claude Sonnet 5.5 (high) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported September 28, 2026 System card Anthropic Self-reported Record for Claude Sonnet 5.5 on Humanity's Last Exam Full set — No tools 20016 Anthropic Claude Sonnet 5.5 (xhigh)53.0% anthropic.com for Claude Sonnet 5.5 (xhigh) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported September 28, 2026 System card Anthropic Self-reported Record for Claude Sonnet 5.5 on Humanity's Last Exam Full set — No tools 20016 Anthropic Claude Opus 5.5 (medium)59.0% www-cdn.anthropic.com for Claude Opus 5.5 (medium) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported September 22, 2026 System card Anthropic Self-reported Record for Claude Opus 5.5 on Humanity's Last Exam Full set — No tools 20015 Anthropic Claude Opus 5.5 (max)64.4% www-cdn.anthropic.com for Claude Opus 5.5 (max) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported September 22, 2026 System card Anthropic Self-reported Record for Claude Opus 5.5 on Humanity's Last Exam Full set — No tools 20015 Anthropic Claude Opus 5.5 (high)59.6% www-cdn.anthropic.com for Claude Opus 5.5 (high) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported September 22, 2026 System card Anthropic Self-reported Record for Claude Opus 5.5 on Humanity's Last Exam Full set — No tools 20015 Anthropic Claude Opus 5.5 (low)52.9% www-cdn.anthropic.com for Claude Opus 5.5 (low) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported September 22, 2026 System card Anthropic Self-reported Record for Claude Opus 5.5 on Humanity's Last Exam Full set — No tools 20015 Anthropic Claude Opus 5.5 (xhigh)62.8% www-cdn.anthropic.com for Claude Opus 5.5 (xhigh) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported September 22, 2026 System card Anthropic Self-reported Record for Claude Opus 5.5 on Humanity's Last Exam Full set — No tools 20015 Anthropic Claude Fable 5.1 (high)58.0% anthropic.com for Claude Fable 5.1 (high) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported September 1, 2026 Launch post Anthropic Self-reported Record for Claude Fable 5.1 on Humanity's Last Exam Full set — No tools 20004 Anthropic Claude Fable 5.1 (medium)55.9% anthropic.com for Claude Fable 5.1 (medium) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported September 1, 2026 Launch post Anthropic Self-reported Record for Claude Fable 5.1 on Humanity's Last Exam Full set — No tools 20004 Anthropic Claude Fable 5.1 (low)53.2% anthropic.com for Claude Fable 5.1 (low) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported September 1, 2026 Launch post Anthropic Self-reported Record for Claude Fable 5.1 on Humanity's Last Exam Full set — No tools 20004 Anthropic Claude Fable 5.1 (no tools)60.9% anthropic.com for Claude Fable 5.1 (no tools) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported September 1, 2026 Launch post Anthropic Self-reported Record for Claude Fable 5.1 on Humanity's Last Exam Full set — No tools 20004 Anthropic Claude Fable 5.1 (xhigh)60.4% anthropic.com for Claude Fable 5.1 (xhigh) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported September 1, 2026 Launch post Anthropic Self-reported Record for Claude Fable 5.1 on Humanity's Last Exam Full set — No tools 20004 Alibaba (Tongyi) Qwen3.8-Max 43.6% huggingface.co for Qwen3.8-Max on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported August 2, 2026 Model card Qwen Self-reported Qwen Team Record for Qwen3.8-Max on Humanity's Last Exam Full set — No tools 130008 Anthropic Claude Opus 5 (low)47.8% www-cdn.anthropic.com for Claude Opus 5 (low) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported July 24, 2026 System card Anthropic Self-reported Record for Claude Opus 5 on Humanity's Last Exam Full set — No tools 20014 Anthropic Claude Opus 5 (high)56.0% www-cdn.anthropic.com for Claude Opus 5 (high) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported July 24, 2026 System card Anthropic Self-reported Record for Claude Opus 5 on Humanity's Last Exam Full set — No tools 20014 Anthropic Claude Opus 5 (xhigh)56.4% www-cdn.anthropic.com for Claude Opus 5 (xhigh) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported July 24, 2026 System card Anthropic Self-reported Record for Claude Opus 5 on Humanity's Last Exam Full set — No tools 20014 Anthropic Claude Opus 5 (medium)54.2% www-cdn.anthropic.com for Claude Opus 5 (medium) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported July 24, 2026 System card Anthropic Self-reported Record for Claude Opus 5 on Humanity's Last Exam Full set — No tools 20014 Anthropic Claude Opus 5 (max)56.3% www-cdn.anthropic.com for Claude Opus 5 (max) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported July 24, 2026 System card Anthropic Self-reported Record for Claude Opus 5 on Humanity's Last Exam Full set — No tools 20014 Moonshot AI Kimi K3 (max)43.5% huggingface.co for Kimi K3 (max) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported July 16, 2026 Model card Moonshot AI Self-reported Record for Kimi K3 on Humanity's Last Exam Full set — No tools 120003 Anthropic Claude Sonnet 5 (max)43.2% www-cdn.anthropic.com for Claude Sonnet 5 (max) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported June 30, 2026 System card Anthropic Self-reported Record for Claude Sonnet 5 on Humanity's Last Exam Full set — No tools 20013 NVIDIA NVIDIA Nemotron 3 Ultra 550B-A55B (no-tools)26.7% huggingface.co for NVIDIA Nemotron 3 Ultra 550B-A55B (no-tools) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported June 4, 2026 Model card NVIDIA Self-reported Record for NVIDIA Nemotron 3 Ultra 550B-A55B on Humanity's Last Exam Full set — No tools 60003 Anthropic Claude Opus 4.8 (adaptive thinking, max)49.8% www-cdn.anthropic.com for Claude Opus 4.8 (adaptive thinking, max) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported May 28, 2026 System card Anthropic Self-reported Record for Claude Opus 4.8 on Humanity's Last Exam Full set — No tools 20011 Google (DeepMind) Gemini 3.5 Flash 40.2% deepmind.google for Gemini 3.5 Flash on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported May 19, 2026 Model card Google DeepMind Self-reported Record for Gemini 3.5 Flash on Humanity's Last Exam Full set — No tools 30006 DeepSeek AI DeepSeek-V4-Flash (max)34.8% huggingface.co for DeepSeek-V4-Flash (max) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported April 24, 2026 Model card DeepSeek Self-reported DeepSeek AI Record for DeepSeek-V4-Flash on Humanity's Last Exam Full set — No tools 110001 DeepSeek AI DeepSeek-V4-Pro (max)37.7% huggingface.co for DeepSeek-V4-Pro (max) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported April 24, 2026 Model card DeepSeek Self-reported DeepSeek AI Record for DeepSeek-V4-Pro on Humanity's Last Exam Full set — No tools 110002 OpenAI GPT-5.5 (xhigh)41.4% openai.com for GPT-5.5 (xhigh) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported April 23, 2026 Launch post OpenAI Self-reported Record for GPT-5.5 on Humanity's Last Exam Full set — No tools 10008 Moonshot AI Kimi K2.6 (thinking)34.7% huggingface.co for Kimi K2.6 (thinking) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported April 20, 2026 Model card Moonshot AI Self-reported Record for Kimi K2.6 on Humanity's Last Exam Full set — No tools 120002 Anthropic Claude Opus 4.7 (adaptive thinking, max)46.9% www-cdn.anthropic.com for Claude Opus 4.7 (adaptive thinking, max) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported April 16, 2026 System card Anthropic Self-reported Record for Claude Opus 4.7 on Humanity's Last Exam Full set — No tools 20010 Meta AI (originally Facebook AI Research) Muse Spark (contemplating)50.2% ai.meta.com for Muse Spark (contemplating) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported April 8, 2026 Launch post Meta Self-reported Record for Muse Spark on Humanity's Last Exam Full set — No tools 80001 Meta AI (originally Facebook AI Research) Muse Spark (thinking)42.8% ai.meta.com for Muse Spark (thinking) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported April 8, 2026 Evaluation methodology Meta Self-reported Record for Muse Spark on Humanity's Last Exam Full set — No tools 80001 NVIDIA NVIDIA Nemotron 3 Super 120B-A12B (no-tools)18.3% huggingface.co for NVIDIA Nemotron 3 Super 120B-A12B (no-tools) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported March 11, 2026 Model card NVIDIA Self-reported Record for NVIDIA Nemotron 3 Super 120B-A12B on Humanity's Last Exam Full set — No tools 60002 OpenAI GPT-5.4 (xhigh)39.8% openai.com for GPT-5.4 (xhigh) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported March 5, 2026 Launch post OpenAI Self-reported Record for GPT-5.4 on Humanity's Last Exam Full set — No tools 10007 Google (DeepMind) Gemini 3.1 Pro (High)44.4% deepmind.google for Gemini 3.1 Pro (High) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported February 19, 2026 Model card Google DeepMind Self-reported Record for Gemini 3.1 Pro on Humanity's Last Exam Full set — No tools 30005 Alibaba (Tongyi) Qwen3.5-397B-A17B 28.7% alibabacloud.com for Qwen3.5-397B-A17B on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported February 17, 2026 Launch post Alibaba Cloud Community Self-reported Qwen Team Record for Qwen3.5-397B-A17B on Humanity's Last Exam Full set — No tools 130003 Anthropic Claude Sonnet 4.6 (adaptive thinking, max)33.2% www-cdn.anthropic.com for Claude Sonnet 4.6 (adaptive thinking, max) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported February 17, 2026 System card Anthropic Self-reported Record for Claude Sonnet 4.6 on Humanity's Last Exam Full set — No tools 20009 Anthropic Claude Opus 4.6 (adaptive thinking, max)40.0% www-cdn.anthropic.com for Claude Opus 4.6 (adaptive thinking, max) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported February 5, 2026 System card Anthropic Self-reported Record for Claude Opus 4.6 on Humanity's Last Exam Full set — No tools 20008 Moonshot AI Kimi K2.5 (thinking)30.1% huggingface.co for Kimi K2.5 (thinking) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported January 27, 2026 Model card Moonshot AI Self-reported Record for Kimi K2.5 on Humanity's Last Exam Full set — No tools 120001 Alibaba (Tongyi) Qwen3-Max-Thinking 30.2% alibabacloud.com for Qwen3-Max-Thinking on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported January 25, 2026 Launch post Alibaba Cloud Community Self-reported Qwen Team Record for Qwen3-Max-Thinking on Humanity's Last Exam Full set — No tools 130002 Google (DeepMind) Gemini 3 Flash 33.7% blog.google for Gemini 3 Flash on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported December 17, 2025 Launch post Google Self-reported Google DeepMind Record for Gemini 3 Flash on Humanity's Last Exam Full set — No tools 30009 NVIDIA NVIDIA Nemotron 3 Nano 30B-A3B (no-tools)10.6% huggingface.co for NVIDIA Nemotron 3 Nano 30B-A3B (no-tools) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported December 15, 2025 Model card NVIDIA Self-reported Record for NVIDIA Nemotron 3 Nano 30B-A3B on Humanity's Last Exam Full set — No tools 60001 Anthropic Claude Opus 4.5 (extended thinking)30.8% assets.anthropic.com for Claude Opus 4.5 (extended thinking) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported November 24, 2025 System card Anthropic Self-reported Record for Claude Opus 4.5 on Humanity's Last Exam Full set — No tools 20007 Google (DeepMind) Gemini 3 Pro (high)37.5% blog.google for Gemini 3 Pro (high) on Humanity's Last Exam Full set — No tools (opens in a new tab) Humanity's Last Exam Accuracy Reported November 18, 2025 Launch post Google Self-reported Google DeepMind Record for Gemini 3 Pro on Humanity's Last Exam Full set — No tools 30008