Get started

• Overview
• Quickstart
• Models
• Pricing
• SDKs and CLI

  • OpenAI SDK
  • Agents SDK
  • OpenAI CLI
• Latest: GPT-5.5
• Prompt guidance

Core concepts

• Text generation
• Code generation
• Images and vision
• Audio and speech
• Structured output
• Function calling
• Responses API
• Using tools

Agents SDK

• Overview
• Quickstart
• Agent definitions
• Models and providers
• Running agents
• Sandbox agents
• Orchestration
• Guardrails
• Results and state
• Integrations and observability
• Evaluate agent workflows
• Voice agents
• ChatKit

  • Overview
  • Customize
  • Widgets
  • Actions
  • Advanced integrations

Tools

• Web search
• MCP and Connectors

  • Secure MCP Tunnel
• Skills
• Shell
• Computer use
• File search and retrieval

  • File search
  • Retrieval
• Tool search
• More tools

  • Apply Patch
  • Local shell
  • Image generation
  • Code interpreter

Run and scale

• Conversation state
• Background mode
• Streaming
• WebSocket mode
• Webhooks
• File inputs
• Context management

  • Compaction
  • Counting tokens
  • Prompt caching
• Prompting

  • Overview
  • Prompt engineering
  • Citation formatting
  • Migration guide
• Reasoning

  • Reasoning models
  • Reasoning best practices

Evaluation

• Red teaming

Realtime and audio

• Overview
• Voice agents
• Live translation
• Transcription

  • Realtime transcription
  • Speech to text
• Speech generation
• Realtime prompting guide
• Connection methods

  • WebRTC
  • WebSocket
  • SIP
• Realtime sessions

  • Managing conversations
  • Voice activity detection
  • Realtime with tools
  • Webhooks and server-side controls
  • Managing costs

Specialized models

• Image generation
• Video generation
• Deep research
• Embeddings
• Moderation

Going live

• Production best practices
• Workload identity federation

  • Overview
  • Kubernetes
  • AWS
  • Microsoft Azure
  • Google Cloud
  • GitHub Actions
  • SPIFFE
• Deployment checklist
• Amazon Bedrock
• Latency optimization

  • Overview
  • Predicted Outputs
  • Priority processing
• Cost optimization

  • Overview
  • Batch
  • Flex processing
• Accuracy optimization
• Safety

  • Safety best practices
  • Safety checks
  • Cybersecurity checks
  • Under 18 API Guidance

Legacy APIs

• Agent Builder

  • Overview
  • Migration guide
  • Node reference
  • Safety in building agents
• Evals

  • Getting started
  • Working with evals
  • Prompt optimizer
  • External models
  • Best practices
  • Graders
• Fine-tuning

  • Optimization cycle
  • Supervised fine-tuning
  • Vision fine-tuning
  • Direct preference optimization
  • Reinforcement fine-tuning
  • RFT use cases
  • Best practices
• Assistants API

  • Migration guide
  • Deep dive
  • Tools

Resources

• Terms and policies
• Changelog
• Your data
• Permissions
• Rate limits
• IP egress ranges
• Admin APIs
• Deprecations
• MCP for deep research
• Developer mode
• ChatGPT Actions

  • Introduction
  • Getting started
  • Actions library
  • Authentication
  • Production
  • Data retrieval
  • Sending files

Getting Started

• Overview
• Quickstart
• Explore use cases
• Import to Codex
• Pricing
• Concepts

  • Prompting
  • Customization
  • Memories

    • Chronicle
  • Sandboxing

    • Auto-review
  • Subagents
  • Workflows
  • Models
  • Cyber Safety
  • Glossary

Using Codex

• App

  • Overview
  • Features
  • Settings
  • Review
  • Automations
  • Worktrees
  • Local Environments
  • In-app browser
  • Chrome extension
  • Computer Use
  • Appshots
  • Commands
  • Windows
  • Troubleshooting
• IDE Extension

  • Overview
  • Features
  • Settings
  • IDE Commands
  • Slash commands
• CLI

  • Overview
  • Features
  • Command Line Options
  • Slash commands
• Web

  • Overview
  • Environments
  • Internet Access
• Integrations

  • GitHub
  • Slack
  • Linear
• Codex Security

  • Overview
  • Codex Security plugin

    • Quickstart
    • Run a security scan
    • Run a deep scan
    • Review code changes
    • Triage a backlog
    • Fix findings
    • Export and track findings
    • Changelog
  • Codex Security cloud

    • Setup
    • Improving the threat model
  • FAQ

Configuration

• Config File

  • Config Basics
  • Advanced Config
  • Config Reference
  • Environment Variables
  • Sample Config
• Permissions
• Speed
• Rules
• Hooks
• AGENTS.md
• MCP
• Plugins

  • Overview
  • Build plugins
• Sites
• Skills

  • Overview
  • Record & Replay
• Subagents

Administration

• Authentication

  • Overview
  • Access tokens
• Agent approvals & security
• Remote connections
• Deployment

  • Amazon Bedrock
• Enterprise

  • Admin Setup
  • Governance
  • Managed configuration
• Windows

Automation

• Non-interactive Mode
• Codex SDK
• App Server
• MCP Server
• GitHub Action

Learn

• Best practices
• Videos
• Community
• Blog

  • Mastering Codex Remote for engineering
  • Using skills to accelerate OSS maintenance
  • View all
• Cookbooks

  • Build an Agent Improvement Loop with Traces, Evals, and Codex
  • Build iterative repair loops with Codex
  • View all
• Building AI Teams

Releases

• Changelog
• Feature Maturity
• Open Source

• Home
• Collections

• Home
• Quickstart

Core Concepts

• MCP Apps in ChatGPT
• MCP Server
• UX principles
• UI guidelines

Plan

• Research use cases
• Define tools
• Design components

Build

• Set up your server
• Build your ChatGPT UI
• Authenticate users
• Manage state
• Monetize your app
• Examples

Deploy

• Deploy your app
• Connect from ChatGPT
• Test your integration
• Submit your app

Conversion apps

• Restaurant reservation spec
• Product checkout spec

Guides

• Optimize Metadata
• Security & Privacy
• Troubleshooting

Resources

• Changelog
• App submission guidelines
• Reference

• Home

Get started

• Trigger workspace agent runs
• Authenticate with Workspace Agent access tokens

• Home

Guides

• Get started
• Best practices

File Upload

• Overview
• Products

API

• Overview
• Feeds
• Products
• Promotions

• Ads Overview

Measurement

• JavaScript Pixel
• Image tag
• Conversions API
• Supported events

Advertiser API

• Overview
• Quickstart
• Product feeds
• Campaign Targeting

API Reference

• Authentication
• Campaigns
• Ad Groups
• Ads
• Ad Account
• Insights
• Files

• Home
• API examples
• Sites

• All posts

Recent

• Making private MCP servers reachable without making them public
• Mastering Codex Remote for engineering
• How Perplexity Brought Voice Search to Millions Using the Realtime API
• Designing delightful frontends with GPT-5.4
• From prompts to products: One year of Responses

Topics

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• Home

Topics

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