> ## Documentation Index
> Fetch the complete documentation index at: https://docs.openinterpreter.com/llms.txt
> Use this file to discover all available pages before exploring further.

# OpenAI

To use Open Interpreter with a model from OpenAI, simply run:

<CodeGroup>
  ```bash Terminal theme={null}
  interpreter
  ```

  ```python Python theme={null}
  from interpreter import interpreter

  interpreter.chat()
  ```
</CodeGroup>

This will default to `gpt-4-turbo`, which is the most capable publicly available model for code interpretation (Open Interpreter was designed to be used with `gpt-4`).

To run a specific model from OpenAI, set the `model` flag:

<CodeGroup>
  ```bash Terminal theme={null}
  interpreter --model gpt-3.5-turbo
  ```

  ```python Python theme={null}
  from interpreter import interpreter

  interpreter.llm.model = "gpt-3.5-turbo"
  interpreter.chat()
  ```
</CodeGroup>

# Supported Models

We support any model on [OpenAI's models page:](https://platform.openai.com/docs/models/)

<CodeGroup>
  ```bash Terminal theme={null}
  interpreter --model gpt-4o
  ```

  ```python Python theme={null}
  interpreter.llm.model = "gpt-4o"
  ```
</CodeGroup>

# Required Environment Variables

Set the following environment variables [(click here to learn how)](https://chat.openai.com/share/1062cdd8-62a1-4aa8-8ec9-eca45645971a) to use these models.

| Environment Variable | Description                                          | Where to Find                                                       |
| -------------------- | ---------------------------------------------------- | ------------------------------------------------------------------- |
| `OPENAI_API_KEY`     | The API key for authenticating to OpenAI's services. | [OpenAI Account Page](https://platform.openai.com/account/api-keys) |