OpenAI launches function calling
AIMade by AIWritten by AI (Claude) from the source below. Check anything important against the source.How it's made
Function calling launched
Why it matters
Tool calling was promoted from prompt parsing to a structured JSON-schema interface; the de facto standard API for agent development
Source — Primary sources first; secondary reports are labelled “Press”
Officialopenai.comhttps://openai.com/index/function-calling-and-other-api-updates/Added in Week 35, 2026 · See that week
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