Nano Banana

1uv pip install google-genai Pillow

1export GOOGLE_API_KEY=****

1from pathlib import Path
2
3from kern.agent import Agent
4from kern.tools.nano_banana import NanoBananaTools
5
6# Example 1: Basic NanoBanana agent with default settings
7agent = Agent(tools=[NanoBananaTools()], name="NanoBanana Image Generator")
8
9# Example 2: Custom aspect ratio generator
10portrait_agent = Agent(
11    tools=[
12        NanoBananaTools(
13            aspect_ratio="2:3"  # Portrait orientation
14        )
15    ],
16    name="Portrait NanoBanana Generator",
17)
18
19# Example 3: Widescreen generator for panoramic images
20widescreen_agent = Agent(
21    tools=[
22        NanoBananaTools(
23            aspect_ratio="16:9"  # Widescreen format
24        )
25    ],
26    name="Widescreen NanoBanana Generator",
27)
28
29# Test basic generation
30agent.print_response(
31    "Generate an image of a futuristic city with flying cars",
32    markdown=True,
33)
34
35# Generate and save an image
36response = widescreen_agent.run(
37    "Create a panoramic nature scene with mountains and a lake at sunset",
38    markdown=True,
39)
40
41# Save the generated image if available
42if response.images and response.images[0].content:
43    output_path = Path("generated_image.png")
44    with open(output_path, "wb") as f:
45        f.write(response.images[0].content)
46
47    print(f"Image was successfully generated and saved to: {output_path}")