curl --request POST \
  --url https://api.shuyou.ai/v1/predictions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "speech-2.8-hd",
  "input": {
    "prompt": "At the jet bridge, Leo took his first step onto the metal walkway. He could smell faint fumes from the runway. The plane loomed ahead like a quiet animal. As he approached the door, he paused, gave the flight attendant a small smile, and entered the long, low-lit cabin.Engines roared. Leo grasped the armrest as the plane gathered speed and lifted into the sky. The city below shrank into a dim grid of lights. At cruising altitude, the engines settled into a low hum. The atmosphere outside felt thin and silent.",
    "voice": "English_Graceful_Lady"
  },
  "webhook": "https://api.shuyou.ai/backend/api/callback"
}
'