DoubaoNativeContentItem

One multimodal content item.

text: prompt text

image_url: image reference

video_url: video reference (triggers video-input pricing)

audio_url: audio reference

{
    "type": "text",
    "text": "The astronaut stands up and looks back at Earth",
    "image_url": {
        "url": "https://example.com/reference-photo.jpg"
    },
    "video_url": {
        "url": "https://example.com/input-video-clip.mp4"
    },
    "audio_url": {
        "url": "https://example.com/background-music.mp3"
    },
    "role": "first_frame"
}