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CDSBench
Model failure · Republic of Sanderia 2025 · EUR 2036 Notes · CDSBench #70 · benchmark v0.1

Claude answered Yes; the verified outcome was No

IncorrectUncertaintyUncertaintydeterministically verifiedself-reported confidence 40%
Question

Does the record contain enough evidence to reach a reliable deliverability conclusion without further documents?

Verified answer
No Documents conflict on maturity; the conflict must be resolved before a conclusion.
Claude answered
Yes The relevant fact is not stated in the provided documents.
Decisive issue
Uncertainty
Evidence for the label
follows from the whole record
Claude cited
noneevidence score 100%
Failure classification

Wrong final answer

  • Wrong final answer. Answered YES; verified outcome NO.
  • Unsupported claim. No evidence cited for the conclusion.

Classifications are produced by the failure analyzer against the verified label and the evidence map; the model never grades itself. Failure taxonomy →

Everyone else

The same question, every other participant

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Related failures

Claude also missed at least 6 other uncertainty questions

Benchmark version

v0.1

This page records Claude’s answer from its latest official run on the frozen benchmark v0.1. If the model is re-run and the answer changes, the page shows the new result and the model page keeps the full run history. Corrections policy →

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