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Right Knowledge, Wrong Answer: Characterizing Parametric Temporal Conflict in Open-Weight Language Models
arXiv cs.CL — Computation and Language
Factual evidence
What the source reports
Research identifies 'Parametric Temporal Conflict' in open-weight LLMs, where newer facts are present but outdated ones are preferred without specific prompting.
Open sourceOneBench interpretation
Institutional assessment
So what
This research details a consistent factual recall failure mode in open-weight models that impacts model reliability and data freshness in enterprise deployments.
Do what
Your model validation framework for open-source LLMs must explicitly test for temporal factual consistency and identify effective mitigation strategies like date-prefix prompting.