Model results

Humanity's Last Exam

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Atlas snapshot captured 10/19/2026, 10:20:28 AM UTC. This is an import timestamp, not the evaluation date. Coverage may be incomplete.

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Humanity's Last Exam

Source: Humanity's Last Exam via Epoch AI
Version: Not reported
Measurement date: Not reported
Metric: % · Higher is better
Evaluation scope: effort xhigh · result date not supplied

Positions are withheld because at least one result lacks explicit independent provenance or a documented evaluation scope. Missing metadata is shown as unreported; matching imported metadata is not independent verification of the protocol.

Claude Fable 5.1
anthropic/claude-fable-5-1
46.5%
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Claude Sonnet 5.5
anthropic/claude-sonnet-5-5
46.1%
View modelEvidence aggregated
GPT-5.4
openai/gpt-5.4-20260305
36.2%
View modelEvidence aggregated