Nano Banana のテキストから画像生成とサイズ

import base64
from google import genai
from google.genai import types
 
client = genai.Client(
    api_key="YOUR_OFOX_API_KEY",
    http_options={"api_version": "v1beta", "base_url": "https://api.ofox.io/gemini"},
)
 
resp = client.models.generate_content(
    model="google/gemini-3.1-flash-image",
    contents="白いテーブルの上に置かれた赤いリンゴ",
    config=types.GenerateContentConfig(
        response_modalities=["IMAGE"],
        image_config=types.ImageConfig(aspect_ratio="16:9", image_size="2K"),
    ),
)
 
for part in resp.candidates[0].content.parts:
    if part.inline_data:
        with open("output.png", "wb") as f:
            f.write(part.inline_data.data)

curl 'https://api.ofox.io/gemini/v1beta/models/google/gemini-3.1-flash-image:generateContent' \
  --max-time 600 \
  -H "x-goog-api-key: $OFOX_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "contents": [{ "parts": [{ "text": "白いテーブルの上に置かれた赤いリンゴ" }] }],
    "generationConfig": {
      "responseModalities": ["IMAGE"],
      "imageConfig": { "aspectRatio": "16:9", "imageSize": "2K" }
    }
  }' | jq -r '.candidates[0].content.parts[] | select(.inlineData) | .inlineData.data' | base64 --decode > output.png