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

# Google Gemini/Vertex

> OpenHands uses LiteLLM to make calls to Google's chat models. You can find their documentation on using Google as a provider -> [Gemini - Google AI Studio](https://docs.litellm.ai/docs/providers/gemini), [VertexAI - Google Cloud Platform](https://docs.litellm.ai/docs/providers/vertex)

## Gemini - Google AI Studio Configs

When running OpenHands, you'll need to set the following in the OpenHands UI through the Settings under the `LLM` tab:

* `LLM Provider` to `Gemini`
* `LLM Model` to the model you will be using.
  If the model is not in the list, enable `Advanced` options, and enter it in `Custom Model`
  (e.g. gemini/\<model-name> like `gemini/gemini-2.0-flash`).
* `API Key` to your Gemini API key

## VertexAI - Google Cloud Platform Configs

To use Vertex AI through Google Cloud Platform when running OpenHands, you'll need to set the following environment
variables using `-e` in the docker run command:

```
GOOGLE_APPLICATION_CREDENTIALS="<json-dump-of-gcp-service-account-json>"
VERTEXAI_PROJECT="<your-gcp-project-id>"
VERTEXAI_LOCATION="<your-gcp-location>"
```

Then set the following in the OpenHands UI through the Settings under the `LLM` tab:

* `LLM Provider` to `VertexAI`
* `LLM Model` to the model you will be using.
  If the model is not in the list, enable `Advanced` options, and enter it in `Custom Model`
  (e.g. vertex\_ai/\<model-name>).