A new benchmark for testing LLMs for deterministic outputs

If you're piping LLM outputs into databases, tickets, or any real workflow, you already know the dirty secret: the model can nail the schema but hallucinate the actual values. Interfaze just dropped a structured output benchmark that goes beyond format compliance and actually tests for deterministic, correct values. This is the kind of rigorous eval infrastructure the space badly needs. Most benchmarks check if the JSON is valid. This one checks if the JSON is TRUE. For anyone running invoice parsing, doc ingestion, or multi-step agentic pipelines, this benchmark could save you from shipping confidently wrong data at scale. Worth reading the methodology even if you don't adopt the benchmark wholesale — it'll sharpen how you think about output validation in your own stack. -> Best for: Founders and engineers building LLM-powered data pipelines or document processing tools who need to trust structured outputs in production.