Benchmark reveals LLMs generate SQL for impossible queries instead of refusing
A new benchmark exposes a critical blind spot in production LLM systems: the inability to recognize and refuse flawed user queries. PremiseSQL introduces 1,800 premise-failure test cases across four failure modes, revealing that frontier models often generate plausible but misleading SQL rather than abstaining. This matters because deployed NL2SQL systems currently lack guardrails against logically incoherent requests, creating silent failure modes in data applications. The work signals growing attention to model robustness beyond accuracy metrics, forcing builders to confront the gap between benchmark performance and real-world reliability.62








