Nano Banana Image Skills — Nano Banana Image 技能s

Gemini Image Generation

生成 images from text descriptions or modify existing images using Google's Gemini 模型s via the Wisdom Gate API.

Quick Usage Text-to-Image python scripts/生成_image.py "your prompt here" [--aspect-ratio RATIO] [--size SIZE] [--输出 PATH]

Image-to-Image (Single or Multiple) # Single image python scripts/生成_image.py "modification prompt" --输入 输入.jpg [--输出 PATH]

# Multiple images (up to 14) python scripts/生成_image.py "combine these people in an office photo" --输入 person1.jpg person2.jpg person3.jpg

Multi-Turn Refinement # First turn: 生成 initial image (auto-selects Nano Banana 2) python scripts/refine_image.py "创建 a vibrant 信息graphic about photosynthesis" --re设置

# Second turn: Refine with 质量 priority python scripts/refine_image.py "Make it more colorful and 添加 more visual elements" --质量

# Third turn: Further refinement with specific 模型 python scripts/refine_image.py "添加 labels to each 组件" --模型 nano-banana-pro

# 启动 a new conversation with bud获取 模型 python scripts/refine_image.py "New prompt here" --re设置 --模型 nano-banana

Parameters (生成_image.py):

prompt (required): Text description of the image to 生成 or modification to 应用ly --输入: 输入 image path(s) for image-to-image generation - supports up to 14 images (optional) --aspect-ratio: Image aspect ratio (text-to-image only) - 1:1 (default), 16:9, 9:16, 21:9, 4:3, 3:4, 5:4, 4:5, 2:3, 3:2, 1:4, 4:1, 1:8, 8:1 --size: Image resolution (text-to-image only) - 0.5K, 1K (default), 2K, 4K --输出: 输出 file path (default: 生成d_image.png) --模型: Force specific 模型 - nano-banana, nano-banana-2, nano-banana-pro (auto-select if not specified) --质量: Prioritize 质量 over cost (uses Nano Banana Pro when possible)

Parameters (refine_image.py):

prompt (required): Refinement instruction or initial prompt --历史: Conversation 历史 file (default: conversation.json) --输出: 输出 file path (default: refined_image.png) --re设置: Re设置 conversation 历史 and 启动 fresh --模型: Force specific 模型 - nano-banana, nano-banana-2, nano-banana-pro (auto-select if not specified) --质量: Prioritize 质量 over cost (uses Nano Banana Pro)

环境:

Requires WISGATE_KEY 环境 variable Alternative: 设置 Authorization: Bearer YOUR_KEY header (modify script if needed) Examples Text-to-Image # Basic generation (auto-selects Nano Banana 2 for best balance) python scripts/生成_image.py "A serene mountAIn landscape at sun设置"

# High 质量 mode (uses Nano Banana Pro) python scripts/生成_image.py "Futuristic city skyline" --质量 --aspect-ratio 16:9 --size 4K

# Bud获取 mode (force cheapest 模型) python scripts/生成_image.py "Simple illustration" --模型 nano-banana --size 2K

# PortrAIt orientation with specific 模型 python scripts/生成_image.py "PortrAIt of a wise old wizard" --aspect-ratio 9:16 --模型 nano-banana-pro

Image-to-Image # Modify an existing image (auto-selects 应用ropriate 模型) python scripts/生成_image.py "make it look like a watercolor pAInting" --输入 photo.jpg

# Style transfer with 质量 priority python scripts/生成_image.py "Van Gogh style" --输入 portrAIt.png --质量

# Multiple reference images (auto-uses Nano Banana Pro for best 质量) python scripts/生成_image.py "group photo of these people at a party" --输入 person1.jpg person2.jpg person3.jpg person4.jpg

# Bud获取 multi-image (force cheaper 模型) python scripts/生成_image.py "combine these items" --输入 item1.jpg item2.jpg --模型 nano-banana-2

模型s 模型 Alias Description Resolutions Cost gemini-2.5-flash-image nano-banana Cheapest, fast & economical 1K, 2K 💰 Low gemini-3.1-flash-image-preview nano-banana-2 Best value, recommended 0.5K, 1K, 2K, 4K 💰💰 Medium gemini-3-pro-image-preview nano-banana-pro Best performance, high 质量 1K, 2K, 4K 💰💰💰 High

Smart 模型 Selection (Default Behavior):

Multiple image 输入 (>1 image) → Automatically uses Nano Banana Pro (best 质量) 4K resolution → Nano Banana 2 or Pro (depends on --质量 flag) 0.5K resolution → Nano Banana 2 (only supported 模型) Other scenarios → Nano Banana 2 (best value)

Manual 模型 Override: Use the --模型 parameter to force a specific 模型:

python scripts/生成_image.py "prompt" --模型 nano-banana # Cheapest python scripts/生成_image.py "prompt" --模型 nano-banana-2 # Best value python scripts/生成_image.py "prompt" --模型 nano-banana-pro # Best 质量

质量 Priority Mode: Use the --质量 flag to prefer Nano Banana Pro when possible:

python scripts/生成_image.py "prompt" --质量

API 端点 格式化:

https://API.wisgate.AI/v1beta/模型s/{模型}:生成Content

Authentication:

Header: x-goog-API-key: YOUR_WISGATE_KEY Or: Authorization: Bearer YOUR_WISGATE_KEY 工作流 One-Shot Generation (生成_image.py) 检查 if WISDOM_GATE_KEY is 设置 in 环境 For text-to-image: 运行 scrip