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Code

cookbook/11_models/google/gemini/s3_url_file_input.py
"""S3 pre-signed URL input with Gemini.

Pass files from S3 using pre-signed URLs without downloading.
Supports files up to 100MB. Requires Gemini 3.x models.
"""

import boto3
from agno.agent import Agent
from agno.media import File
from agno.models.google import Gemini

s3_client = boto3.client("s3")
presigned_url = s3_client.generate_presigned_url(
    "get_object",
    Params={
        "Bucket": "agno-public",
        "Key": "recipes/ThaiRecipes.pdf",
    },
    ExpiresIn=3600,
)

agent = Agent(
    model=Gemini(id="gemini-3-flash-preview"),
    markdown=True,
)

agent.print_response(
    "What is this document about? Answer in one sentence.",
    files=[
        File(
            url=presigned_url,
            mime_type="application/pdf",
        )
    ],
)

​
Usage

1

Set up your virtual environment

uv venv --python 3.12
source .venv/bin/activate
2

Set your credentials

export GOOGLE_API_KEY=xxx
export AWS_ACCESS_KEY_ID=xxx
export AWS_SECRET_ACCESS_KEY=xxx
3

Install dependencies

pip install -U google-genai agno boto3
4

Run Agent

python cookbook/11_models/google/gemini/s3_url_file_input.py