Function Calling Explained: How AI Models Use Tools (With Real Examples)
Function calling lets LLMs request specific tool actions rather than just generating text. Here's how it works, when to use it, and practical examples in Python.
Structured Outputs and JSON Mode: Getting Reliable Data From AI
Asking for JSON in your prompt isn't reliable. Structured outputs with schema enforcement is. Here's how JSON mode and structured outputs work across OpenAI, Anthropic, and Google's APIs.