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AI Atlas
BenchmarkActivecategory · knowledge

Humanity's Last Exam

lastexam.ai

expert-written frontier questions

quality57

Updated 1 h ago · first seen 11 Sept 2026

bench_01M293SPF6DJWPYGZNWJ17XZ9Z

Metric
accuracy · %
Direction
Results
0
Leader

As of

Rewind the record: see this entity's attributes exactly as AI Atlas knew them on a given day.

Claim history

6 claims · 6 properties

Categorycategory1

Claim history for Category
ValueValid from → toStatusSourceConfidenceExtractor
knowledgecurrentcurrentAI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2mediumcurated

Metricmetric1

Claim history for Metric
ValueValid from → toStatusSourceConfidenceExtractor
accuracycurrentcurrentAI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2mediumcurated

Paperpaper1

Claim history for Paper
ValueValid from → toStatusSourceConfidenceExtractor
https://arxiv.org/abs/2501.14249currentcurrentAI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2mediumcurated

Tasktask1

Claim history for Task
ValueValid from → toStatusSourceConfidenceExtractor
expert-written frontier questionscurrentcurrentAI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2mediumcurated

Unitunit1

Claim history for Unit
ValueValid from → toStatusSourceConfidenceExtractor
%currentcurrentAI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2mediumcurated

Websitewebsite1

Claim history for Website
ValueValid from → toStatusSourceConfidenceExtractor
https://lastexam.aicurrentcurrentAI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2mediumcurated

Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →