JSON

Function Calling is the foundational technology enabling OpenAI models (GPT-4o, GPT-4o-mini, o3-mini) to act as structured software agents. Rather than returnin…

Historically, extracting structured JSON data from Large Language Models required regex parsing, retry loops, and defensive fallback logic to handle missing key…

LLMs are fluent text generators; production systems need contracts. The gap shows up when a classifier returns urgent-ish, omits a required field, wraps JSON in…