Google is natively supported in fast-agent using the Google genai libraries.
YAML Configuration:
google:
api_key: "your_google_key"
base_url: "https://generativelanguage.googleapis.com/v1beta/openai"
Environment Variables:
GOOGLE_API_KEY: Your Google API key
Model Name Aliases:
| Model Alias | Maps to | Model Alias | Maps to |
|---|---|---|---|
gemini |
gemini-3.1-pro-preview |
gemini25 |
gemini-2.5-flash |
gemini-2.0-flash |
gemini-2.0-flash |
gemini25pro |
gemini-2.5-pro |
gemini-2.5-flash |
gemini-2.5-flash |
gemini3 |
gemini-3-pro-preview |
gemini-2.5-pro |
gemini-2.5-pro |
gemini3.1 |
gemini-3.1-pro-preview |
gemini-3-flash-preview |
gemini-3-flash-preview |
gemini3.1flashlite |
gemini-3.1-flash-lite-preview |
gemini-3-pro-preview |
gemini-3-pro-preview |
gemini3.5flash |
gemini-3.5-flash |
gemini-3.1-flash-lite-preview |
gemini-3.1-flash-lite-preview |
gemini31pro |
gemini-3.1-pro-preview |
gemini-3.1-pro-preview |
gemini-3.1-pro-preview |
gemini35 |
gemini-3.5-flash |
gemini-3.5-flash |
gemini-3.5-flash |
gemini35flash |
gemini-3.5-flash |
gemini2 |
gemini-2.0-flash |
gemini3flash |
gemini-3-flash-preview |
OpenAI Mode
You can also access Google via the OpenAI Provider. Use googleoai in the YAML file, or GOOGLEOAI_API_KEY for API KEY access.