Google Generative AI

The Google Generative AI integration adds a conversation agent powered by Google Generative AI in Home Assistant. It can optionally be allowed to control Home Assistant.

Controlling Home Assistant is done by providing the AI access to the Assist API of Home Assistant. You can control what devices and entities it can access from the exposed entities page. The AI is able to provide you information about your devices and control them.

This integration does not integrate with sentence triggers.

This integration requires an API key to use, which you can generate here, and to be in one of the available regions.


To add the Google Generative AI service to your Home Assistant instance, use this My button:

Generate an API Key

The Google Generative AI API key is used to authenticate requests to the Google Generative AI API. To generate an API key take the following steps:

  • Visit the API Keys page to retrieve the API key you’ll use to configure the integration.

On the same page, you can see your plan: free of charge if the associated Google Cloud project doesn’t have billing, or pay-as-you-go if the associated Google Cloud project has billing enabled. Comparison of the plans is available at this pricing page. The major differences include: the free of charge plan is rate limited, free prompts/responses are used for product improvement, and the free plan is not available in all regions.


Options for Google Generative AI can be set via the user interface, by taking the following steps:

  • Browse to your Home Assistant instance.
  • Go to Settings > Devices & Services.
  • If multiple instances of Google Generative AI are configured, choose the instance you want to configure.
  • Select the integration, then select Configure.

Instructions for the AI on how it should respond to your requests. It is written using Home Assistant Templating.

Control Home Assistant

If the model is allowed to interact with Home Assistant. It can only control or provide information about entities that are exposed to it.

Recommended settings

If enabled, the recommended model and settings are chosen.

If you choose to not use the recommended settings, you can configure the following options:


Model used to generate response.


Creativity allowed in the responses. Higher values produce a more random and varied response. A temperature of zero will be deterministic.

Top P

Probability threshold for top-p sampling.

Top K

Number of top-scored tokens to consider during generation.

Maximum Tokens to Return in Response

The maximum number of words or “tokens” that the AI model should generate.

Safety settings

Thresholds for different harmful categories.

Talking to Super Mario

You can use an OpenAI Conversation integration to talk to Super Mario and, if you want, have him control devices in your home.

The tutorial is using OpenAI, but this could also be done with the Google Generative AI integration.


Service google_generative_ai_conversation.generate_content


This service isn’t tied to any integration entry, so it won’t use the model, prompt, or any of the other settings in your options. If you only want to pass text, you should use the conversation.process service.

Allows you to ask Gemini Pro or Gemini Pro Vision to generate content from a prompt consisting of text and optionally images. This service populates response data with the generated content.

Service data attribute Optional Description Example
prompt no The prompt for generating the content. Describe this image
image_filename yes File names for images to include in the prompt. /tmp/image.jpg
service: google_generative_ai_conversation.generate_content
  prompt: >-
    Very briefly describe what you see in this image from my doorbell camera.
    Your message needs to be short to fit in a phone notification. Don't
    describe stationary objects or buildings.
  image_filename: /tmp/doorbell_snapshot.jpg
response_variable: generated_content

The response data field text will contain the generated content.

Another example with multiple images:

service: google_generative_ai_conversation.generate_content
  prompt: >-
    Briefly describe what happened in the following sequence of images
    from my driveway camera.
    - /tmp/driveway_snapshot1.jpg
    - /tmp/driveway_snapshot2.jpg
    - /tmp/driveway_snapshot3.jpg
    - /tmp/driveway_snapshot4.jpg
response_variable: generated_content