doubao-seedream-4-0-250828

curl https://api.yourplatform.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "undefined",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ],
    "stream": true
  }'