Model failure · Meridian Telecom S.A. 2025 (B) · EUR 2031 Notes · CDSBench #209 · benchmark v0.1
Claude reached the verified outcome but cited evidence that does not exist
Question
What is the maturity date of the instrument? Answer as YYYY-MM-DD.
- Verified answer
- 2031-10-10 Stated in the maturity condition.
- Claude answered
- 2031-10-10 The maturityDate is 2031-10-10.
- Decisive issue
- Extraction
- Evidence for the label
- Claude cited
- 1 non-existentevidence score 67%
Failure classification
Hallucinated evidence
- Hallucinated evidence. 1 cited section id(s) do not exist in the case record.
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
- MastermindCorrectanswered 2031-10-10its failure page →
- GPTCorrectanswered 2031-10-10its failure page →
- GeminiCorrectanswered 2031-10-10its failure page →
Related failures
No other extraction misses on this run
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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