Grok Imagine APIの使い方：画像の生成と編集、1枚$0.055

curl --fail-with-body "https://api.laozhang.ai/v1/images/generations" \
  -H "Authorization: Bearer $LAOZHANG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "grok-imagine-image-2.0",
    "prompt": "A cinematic lighthouse at sunrise, detailed ocean reflections, no text",
    "n": 1,
    "aspect_ratio": "16:9",
    "resolution": "2k",
    "quality": "medium",
    "response_format": "url"
  }' \
  -o grok-generation.json

{
  "data": [
    {
      "url": "https://..."
    }
  ]
}

python3 save_images.py grok-generation.json grok-lighthouse

import base64
import os
from pathlib import Path

from openai import OpenAI

client = OpenAI(
    api_key=os.environ["LAOZHANG_API_KEY"],
    base_url="https://api.laozhang.ai/v1",
    timeout=180,
)

response = client.images.generate(
    model="grok-imagine-image-2.0",
    prompt="ダークスレートの上に置かれた高級機械式腕時計、マクロの商品写真",
    n=1,
    response_format="b64_json",
    extra_body={
        "aspect_ratio": "1:1",
        "resolution": "2k",
        "quality": "medium",
    },
)

value = response.data[0].b64_json.split(",", 1)[-1]
image = base64.b64decode(value + "=" * (-len(value) % 4))
extension = "png" if image.startswith(b"\x89PNG") else "jpg"
output = Path(f"grok-watch.{extension}")
output.write_bytes(image)
print(f"保存しました: {output}")

curl --fail-with-body "https://api.laozhang.ai/v1/images/edits" \
  -H "Authorization: Bearer $LAOZHANG_API_KEY" \
  -F "model=grok-imagine-image-2.0" \
  -F "prompt=マグカップをマットブラックに変更してください。構図、照明、背景はそのままにしてください。" \
  -F "image=@product-photo.png" \
  -F "response_format=url" \
  -o grok-edit.json

python3 save_images.py grok-edit.json grok-edit

curl --fail-with-body "https://api.laozhang.ai/v1/images/edits" \
  -H "Authorization: Bearer $LAOZHANG_API_KEY" \
  -F "model=grok-imagine-image-2.0" \
  -F "prompt=1枚目の画像の商品を2枚目の画像のシーンに置き、3枚目の画像のビジュアルスタイルを適用してください。商品の色は保ってください。" \
  -F "image[]=@product.png" \
  -F "image[]=@scene.jpg" \
  -F "image[]=@style.jpg" \
  -F "aspect_ratio=3:2" \
  -F "response_format=url" \
  -o grok-multi-edit.json

python3 save_images.py grok-multi-edit.json grok-multi-edit

import os
import urllib.request
from pathlib import Path

from openai import OpenAI

client = OpenAI(
    api_key=os.environ["LAOZHANG_API_KEY"],
    base_url="https://api.laozhang.ai/v1",
    timeout=180,
)

with open("product.png", "rb") as source:
    response = client.images.edit(
        model="grok-imagine-image-2.0",
        image=source,
        prompt="商品はそのままにして、背景を雨のネオン街に変えてください。",
        response_format="url",
    )

with urllib.request.urlopen(response.data[0].url, timeout=120) as download:
    image = download.read()
extension = "png" if image.startswith(b"\x89PNG") else "jpg"
output = Path(f"grok-sdk-edit.{extension}")
output.write_bytes(image)
print(f"保存しました: {output}")