Basic Agent

Run a Gemini agent synchronously, with streaming, and asynchronously.

Code

import asyncio

from agno.agent import Agent, RunOutput  # noqa
from agno.models.google import Gemini

agent = Agent(model=Gemini(id="gemini-3.5-flash"), markdown=True)

# Get the response in a variable
# run: RunOutput = agent.run("Share a 2 sentence horror story")
# print(run.content)

if __name__ == "__main__":
    # --- Sync ---
    agent.print_response("Share a 2 sentence horror story")

    # --- Sync + Streaming ---
    agent.print_response("Share a 2 sentence horror story", stream=True)

    # --- Async ---
    asyncio.run(agent.aprint_response("Share a 2 sentence horror story"))

    # --- Async + Streaming ---
    asyncio.run(agent.aprint_response("Share a 2 sentence horror story", stream=True))

Usage

Set up your virtual environment

uv venv --python 3.12
source .venv/bin/activate

Set your API key

export GOOGLE_API_KEY=xxx

Install dependencies

uv pip install -U google-genai agno

Run Agent

Save the code above as basic.py, then run:

python basic.py