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Nano Banana Image Generation Skill

Nano Banana图像生成Skill

Use this skill to generate and edit images using the

google-genai

Python SDK with Gemini's specialized image models (Nano Banana).

使用此Skill，通过

google-genai

Python SDK结合Gemini的专用图像模型（Nano Banana）来生成和编辑图像。

Quick Start Setup

快速开始设置

python

from google import genai
from google.genai import types
from PIL import Image
import io

client = genai.Client()

python

from google import genai
from google.genai import types
from PIL import Image
import io

client = genai.Client()

Reference Materials

参考资料

Model Capabilities: Comparison of Gemini 2.5 vs 3 Pro, resolutions, and token costs.
Image Generation: Text-to-Image, Interleaved Text/Image.
Image Editing: Subject Customization, Style Transfer, Multi-turn Editing.
Thinking Process: Understanding thoughts and signatures (Gemini 3 Pro).
Recipes: Extensive collection of examples (Logos, Stickers, Mockups, Comics, etc.).
Source Code: Deep inspection of SDK internals.

模型能力: Gemini 2.5与3 Pro的对比、分辨率及令牌成本说明。
图像生成: 文本生成图像、文本/图像交错生成。
图像编辑: 主体定制、风格迁移、多轮编辑。
思考过程: 理解Gemini 3 Pro的思考逻辑和签名机制。
示例配方: 丰富的示例集合（标志、贴纸、模型图、漫画等）。
源代码: 深入解析SDK内部实现。

Available Models

可用模型

gemini-2.5-flash-image
(Nano Banana): Fast, high-quality generation and editing. Best for most use cases.
gemini-3-pro-image-preview
(Nano Banana Pro): Highest fidelity, supports
```
2K
```
and
```
4K
```
resolution, complex prompt adherence, and grounding.

gemini-2.5-flash-image
（Nano Banana）: 快速、高质量的生成与编辑。适用于大多数使用场景。
gemini-3-pro-image-preview
（Nano Banana Pro）: 最高保真度，支持
```
2K
```
和
```
4K
```
分辨率，精准贴合复杂提示词，具备图像grounding能力。

Common Workflows

常见工作流

1. Fast Generation

1. 快速生成

python

response = client.models.generate_content(
    model='gemini-2.5-flash-image',
    contents='A cute robot eating a banana',
    config=types.GenerateContentConfig(
        response_modalities=['IMAGE']
    )
)

python

response = client.models.generate_content(
    model='gemini-2.5-flash-image',
    contents='A cute robot eating a banana',
    config=types.GenerateContentConfig(
        response_modalities=['IMAGE']
    )
)

2. High-Quality Editing

2. 高质量编辑

python

response = client.models.generate_content(
    model='gemini-3-pro-image-preview',
    contents=[
        types.Part.from_uri(file_uri='gs://.../shoe.jpg', mime_type='image/jpeg'),
        "Change the color of the shoe to neon green."
    ],
    config=types.GenerateContentConfig(response_modalities=['IMAGE'])
)

python

response = client.models.generate_content(
    model='gemini-3-pro-image-preview',
    contents=[
        types.Part.from_uri(file_uri='gs://.../shoe.jpg', mime_type='image/jpeg'),
        "Change the color of the shoe to neon green."
    ],
    config=types.GenerateContentConfig(response_modalities=['IMAGE'])
)