Veo 3.1 API — Google 的原生音訊文字生成影片，支援 OpenAI 相容格式（2026）

import requests

resp = requests.post(
    "https://api.kunavo.com/v1/video/generations",
    headers={"Authorization": f"Bearer {API_KEY}"},
    json={
        "model": "veo-3",                 # Fast tier; also veo-3-lite / veo-3-quality
        "prompt": "aerial push-in over a misty pine valley at dawn, birds, soft light",
        "aspect_ratio": "16:9",
        "resolution": "720p",
    },
    timeout=600,  # Veo 3 generation takes minutes
)
print(resp.json()["data"][0]["url"])

curl https://api.kunavo.com/v1/video/generations \
  -H "Authorization: Bearer $KUNAVO_API_KEY" \
  -H "Content-Type: application/json" \
  --max-time 600 \
  -d '{
    "model": "veo-3",
    "prompt": "aerial push-in over a misty pine valley at dawn, birds, soft light",
    "aspect_ratio": "16:9",
    "resolution": "720p"
  }'

# Already using the OpenAI SDK? Keep it — only base_url changes.
# Video isn't in the OpenAI SDK surface, so reuse its client for auth/config
# and post to the video route directly.
import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["KUNAVO_API_KEY"],
    base_url="https://api.kunavo.com/v1",
)

resp = client.post(
    "/video/generations",
    body={"model": "veo-3", "prompt": "a neon-lit alley in the rain"},
    cast_to=object,
    options={"timeout": 600.0},
)
print(resp["data"][0]["url"])

# Image-to-video: animate a still by passing image_url
requests.post(
    "https://api.kunavo.com/v1/video/generations",
    headers={"Authorization": f"Bearer {API_KEY}"},
    json={
        "model": "veo-3",
        "prompt": "slow parallax, gentle wind through the grass",
        "image_url": "https://your-cdn.com/keyframe.png",
    },
    timeout=600,
)