Sun. May 24th, 2026

Fact-Checking LLM Outputs Programmatically: Building a Verification Layer That Catches Hallucinations


Last month, I asked an LLM to analyze a company’s financials. The report it generated included this sentence, “The company’s revenue grew 23% year-over-year to $4.2 billion in Q3 2025.”

The actual revenue was $3.8 billion. Growth was 14%. The model made up both numbers with zero hesitation.

By uttu

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