For the complete documentation index, see llms.txt. Markdown versions of documentation pages are available by appending .md to the page URL.

Suggested

Home

Topics

Contribute

Cookbook on GitHub

Text

Generate text, code, structured data, and more with OpenAI's language models.

EmbeddingsCompletionsReasoning

All recipes16

Evaluating Grounded Spatial Reasoning with GPT-5.5

EvalsImagesReasoningVision

Build your own content fact checker with gpt-oss-120B, Cerebras, and Parallel

gpt-ossOpen ModelsReasoning

GPT-5 Prompt Migration and Improvement Using the New Optimizer

ReasoningResponses

GPT-5 prompting guide

ReasoningResponses

Frontend coding with GPT-5

ReasoningResponses

GPT-5 New Params and Tools

FunctionsReasoning

Optimize Prompts

Agents SDKCompletionsResponses

Prompt Migration Guide

CompletionsResponses

Eval Driven System Design - From Prototype to Production

CompletionsEvalsFunctionsResponses

Build Your Own Code Interpreter - Dynamic Tool Generation and Execution With o3-mini

How to handle rate limits

CompletionsEmbeddings

Reasoning over Code Quality and Security in GitHub Pull Requests

CompletionsReasoning

Embedding Wikipedia articles for search

CompletionsEmbeddings

Vision Fine-tuning on GPT-4o for Visual Question Answering

CompletionsFine-tuningVision

Introduction to Structured Outputs

CompletionsFunctions