SMRTR AIApr 29, 2026Hacker News

A new benchmark for testing LLMs for deterministic outputs

SMRTR summary

A new benchmark called SOB (Structured Output Benchmark) reveals a critical flaw in how AI language models are evaluated: passing JSON formatting checks doesn't mean the actual data values are correct. Testing 21 models across text, image, and audio sources, SOB found that models score 97%+ on JSON parsing but drop 15–30 points on actual value accuracy — meaning downstream systems silently receive wrong data. No single model dominates all three modalities, and model size doesn't predict performance.

SMRTR provides this summary for quick context. The original article belongs to Hacker News.

Read the original article
SMRTR AI

Get the next batch of curated summaries in your inbox.

This archive is built from SMRTR newsletter summaries. Subscribe for hand-picked stories without the extra noise.