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OpenAI Dalle-3 APIを使った画像生成Pythonサンプル

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背景

  • Dalle-3をPython APIで呼び出す
  • 出力方式がurlとb64_jsonがあるので両方やり方メモ

response_format = url

  • httpで画像にアクセスできるurlがかえります
  • ただし、1時間しか有効ではないので注意
from openai import OpenAI

client = OpenAI()
res = client.images.generate(
    model="dall-e-3",
    prompt="a cat in the park",
    size="1024x1024",
    quality="hd",
    response_format="url",
    style="vivid"
)
return res.data[0].url

response_format = b64_json

  • 指定したpathにpng形式で保存します
  • base64.b64decode でbytesのデータが取得できるのでそれを書き込みます
from openai import OpenAI

client = OpenAI()
res = client.images.generate(
    model="dall-e-3",
    prompt="a cat in the park",
    size="1024x1024",
    quality="hd",
    response_format="b64_json",
    style="vivid"
)
image_bytes = base64.b64decode(res.data[0].b64_json)
with open(filepath, 'wb') as file:
    file.write(image_bytes)
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