Skills on OpenAI
OpenAI supports Agent Skills natively in OpenAI Codex (CLI, desktop app, and IDE extension). ChatGPT native skill support is rolling out on some plans; on plans without native support, Projects is the closest workaround.
OpenAI Codex (CLI, desktop, IDE extension)
Section titled “OpenAI Codex (CLI, desktop, IDE extension)”OpenAI Codex reads skill folders from your project root. The same SKILL.md open standard used by Claude and other native-skill platforms works here.
Installing skills:
- Place the skill folder in
.agents/skills/(or.codex/skills/) at your project root. - Open the project in OpenAI Codex — skills are discovered automatically.
→ Skills in OpenAI Codex (official OpenAI docs)
ChatGPT
Section titled “ChatGPT”Native skills: rolling out on some plans (currently in beta). Every account includes a default skill-creator skill you can use to create, edit, and troubleshoot your own skills directly in chat. Enterprise and Edu accounts have skills disabled by default — admins can enable them in workspace settings.
→ Skills in ChatGPT (official OpenAI docs)
Projects workaround: on plans without native skill support, use Projects to hold instructions and context. A Project with the skill’s instructions pasted in behaves like a skill across a conversation — the model follows the same structure and output format every time.
→ Using Projects in ChatGPT (official OpenAI docs)
Related
Section titled “Related”- Skills building block — what skills are and how they work across platforms
- Business-First AI Framework skills setup — step-by-step setup for the seven framework skills on OpenAI Codex and ChatGPT