# Source: https://developers.openai.com/resources/guide/reasoning-guide.md

# Reasoning guide

> Overview of what reasoning is and how to prompt reasoning models

- Type: Guide
- Tags: reasoning
- URL: https://platform.openai.com/docs/guides/reasoning?api-mode=responses
- Created: 2025-08-03
- Updated: 2025-08-13

## Summary
Overview of reasoning models and how to prompt them — reasoning, planning, tool use, structured outputs.