OpenAI Parallel Function Calling in One Turn

OpenAI models support calling multiple functions in a single turn—for example, when a user wants to check weather or infrastructure telemetry across 3 different locations simultaneously. Parse the tool arguments, execute the functions, and append the function responses back to the model to summarize.

Developer: When a user requests status or weather metrics across multiple locations at the same time, emit parallel function calls for all requested locations in a single turn.