# Source: https://developers.openai.com/resources/cookbook/o3o4-mini-prompting-guide.md

# o3/o4-mini Function Calling Guide

> Cookbook to improve o3/o4-mini function calling with prompt best practices.

- Type: Cookbook
- Tags: functions, reasoning, responses
- URL: /cookbook/examples/o-series/o3o4-mini_prompting_guide
- Created: 2025-05-26
- Updated: 2025-05-26

## Summary
Cookbook to improve o3/o4-mini function calling with prompt best practices.

## Details
Cookbook to improve o3/o4-mini function calling with prompt best practices.