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Humanity's Last Exam

Humanity's Last Exam — A refined subset of Humanity's Last Exam, following a year-long process of cleaning and…

Humanity's Last Exam is A refined subset of Humanity's Last Exam, following a year-long process of cleaning and refinement with input from research communities.. It is ranked #191 on the AI Radar, in Frontier models, first seen 2 h ago and shared in 1 post (14.2k views).

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Introducing HLE-Diamond | Humanity's Last Exam Humanity's Last Exam Introducing HLE-Diamond & Dataset load_dataset(" cais/hle-diamond ") Center for AI Safety and Scale AI September 22, 2026 We are releasing HLE-Diamond , a refined subset of Humanity’s Last Exam (HLE) question collection, following a year-long process of cleaning and refinement with input from research communities. HLE-Diamond consists of 1,000 questions . Main results. We compare the performance of current models on HLE-Diamond without tools. HLE-Diamond GPT-6 Astra 60.6 % Claude Opus 5.5 55.0 % Claude Fable 5.1 51.3 % Claude Opus 5 38.6 % Gemini 3.8 Flash 34.3 % GPT-6 Sol…

What people said about Humanity's Last Exam on X

We are releasing HLE-Diamond, a refined subset of Humanity’s Last Exam (HLE), following a year-long process of cleaning and refinement with input from various research communities. https://lastexam.ai/blog/hle-diamond w/ @ScaleAILabs

@CAIS, 2 h ago · 310 likes · see the post

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What is Humanity's Last Exam?

A refined subset of Humanity's Last Exam, following a year-long process of cleaning and refinement with input from research communities. It was first shared on X 2 h ago and is ranked #191 on the AI Radar.

Is Humanity's Last Exam free?

Pricing is not stated on the page we read.

Who shared Humanity's Last Exam?

1 account on X, including @CAIS, in 1 post totalling 14.2k views.

Every post is read and classified by Jev (TypeSafe): what it is, which market it belongs to, and whether the link is a real tool. 44.7k posts from 5k X accounts over the last 14 days, 1.9k tools, 19 markets. Collected every 5 minutes, fully re-ranked every hour — last update 2026-09-23 17:53 UTC. Full method.