> For the complete documentation index, see [llms.txt](https://help.intangible.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.intangible.ai/intangible-mcp-agents/openai.md).

# OpenAI

Intangible works with OpenAI's ChatGPT and Codex. GPT-6 models build 3D scenes in Intangible over MCP, including on a personal ChatGPT Plus plan. Apps, models and setup steps.

**Yes, Intangible works with OpenAI's ChatGPT and Codex.** Connect either to Intangible's MCP server and it builds 3D scenes in your Studio tab from a plain-language description.

## Apps and models

| OpenAI app                              | Model                         | Setup                                                               |
| --------------------------------------- | ----------------------------- | ------------------------------------------------------------------- |
| ChatGPT, including a personal Plus plan | ChatGPT's default GPT-6 model | [Connect ChatGPT](/intangible-mcp-agents/openai/connect-chatgpt.md) |
| Codex                                   | Codex's GPT-6 model           | [Connect Codex](/intangible-mcp-agents/openai/connect-codex.md)     |

## Set it up

* [Connect ChatGPT](/intangible-mcp-agents/openai/connect-chatgpt.md): **Plugins › Add › Add custom MCP server**. Keep a single Studio tab open: with two, ChatGPT can't tell which scene to edit.
* [Connect Codex](/intangible-mcp-agents/openai/connect-codex.md): update Codex first, then one command in your terminal. Codex drives Intangible with OpenAI models only.

Then [describe your first scene](/intangible-mcp-agents/intangible-mcp-agents.md#describe-your-first-scene).

## Related

* [Agents & MCP](/intangible-mcp-agents/intangible-mcp-agents.md)
* [Choosing a model](/intangible-mcp-agents/choosing-a-model.md)
* [Troubleshooting and FAQ](/intangible-mcp-agents/troubleshooting-and-faq.md)

*Last updated 23 October 2026.*


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