对口型能力可将视频中人物的嘴部动作与输入音频或 TTS 精准同步，让角色说话更自然，提升视频表现力与叙事感染力。
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
}'