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Guides and concepts for the OpenAI API

Endpoints, parameters, and responses

Guides, concepts, and product docs for Codex

Example workflows and tasks teams hand to Codex

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Build commerce flows in ChatGPT

Publish and measure ads in ChatGPT

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Notebook examples for building with OpenAI models

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Overview
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Latest: GPT-5.5
Prompt guidance

Core concepts

Text generation
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Agents SDK

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AGENTS.md
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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
Using skills to accelerate OSS maintenance
Building frontend UIs with Codex and Figma

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API Reference
API Reference
Responses API
Webhooks
- Events
Platform APIs
- Audio
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- Images
- Embeddings
  - Create an embedding
- Fine Tuning
  - Jobs
    Create a job
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  - Create a moderation
Vector Stores
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ChatKit
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  - Create a session
  - Cancel a session
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Containers
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Skills
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Realtime
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  - Translation client events
  - Translation server events
- Client Secrets
  - Create a client secret
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Administration
- Overview
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  - List audit logs
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- Data Retention
  - Retrieve a data retention
  - Update a data retention
- Spend Alerts
- Certificates
- Projects
  - Create a project
  - Retrieve a project
  - Update a project
  - List projects
  - Archive
  - Users
    Create an user
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    Update an user
    Delete an user
    List users
    Roles
    Create a role
    Retrieve a role
    Delete a role
    List roles
  - Service Accounts
    Create a service account
    Retrieve a service account
    Update a service account
    Delete a service account
    List service accounts
  - API Keys
    Retrieve an API key
    Delete an API key
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  - Rate Limits
    Update Rate Limit
    List Rate Limits
  - Model Permissions
    Retrieve a model permission
    Update a model permission
    Delete a model permission
  - Hosted Tool Permissions
    Retrieve a hosted tool permission
    Update a hosted tool permission
  - Groups
    Create a group
    Retrieve a group
    Delete a group
    List groups
    Roles
    Create a role
    Retrieve a role
    Delete a role
    List roles
  - Roles
    Create a role
    Retrieve a role
    Update a role
    Delete a role
    List roles
  - Data Retention
    Retrieve a data retention
    Update a data retention
  - Spend Alerts
    Create a spend alert
    Update a spend alert
    Delete a spend alert
    List spend alerts
  - Certificates
    List certificates
    Activate
    Deactivate
Chat Completions
- Chat Completions
Legacy
- Realtime Beta
  - Overview
- Assistants
- Completions
  - Create a completion

Content

Download a skill zip bundle by its ID.

$ openai skills:content retrieve

GET/skills/{skill_id}/content