Seedance 2
Seedance 2
Seedance 2 视频生成，支持文生视频、图生视频和多模态参考输入
- Endpoint
- POST /api/v1/videos/generate
- model
- seedance2, seedance2-fast
- Output
- Video
- Credits
- from 30
提交任务
/api/v1/videos/generate参数
modelstring必需"seedance2" for Pro quality or "seedance2-fast" for Fast quality
seedance2seedance2-fastmodestring可选"standard", "real", or "wild" rendering mode. channel is accepted as an alias.
standardrealwildtypestring可选"text-to-video", "image-to-video", or "media-to-video" (auto-detected from media_urls/image_urls when omitted)
text-to-videoimage-to-videomedia-to-videopromptstring必需Text prompt (3-2500 chars)
media_urlsstring[]可选Reference media URLs. Supports images, videos (MP4/MOV) and audio (MP3/WAV); detected by file extension. Video and audio are billed per second by their length, which is measured when you submit.
image_urlsstring[]可选Image-only reference URLs. media_urls takes precedence when both are provided.
input_imagestring可选Deprecated. Alias for image_urls[0]
aspect_ratiostring可选默认16:9"1:1", "21:9", "4:3", "3:4", "16:9", or "9:16" (default: 16:9)
1:121:94:33:416:99:16durationstring可选默认4"4" through "15" seconds (default: 4)
resolutionstring可选默认720p"720p" or "1080p" (default: 720p). "480p" is additionally available only when mode is omitted. Resolution values select quality presets; actual encoding profiles are tuned per mode.
720p1080p480pfallbackboolean可选Allow automatic service fallback when available (default behavior)
truefalseseedinteger可选-1 to 4294967295. Fixes the generation seed for reproducibility. Supported by explicit "standard", "real", and "wild" modes, including real-mode asset:// inputs. When mode is omitted, the parameter is accepted but ignored.
Seedance prompt guide
Seedance prompts work best as concrete director instructions. Describe the subject, action, scene, camera motion, visual style and constraints, then say what each reference file is for.
- For image-to-video, the first image is the opening frame and an optional second image is the closing frame. For reference media, pass images, videos and audio in media_urls.
- Describe each reference's role in the prompt in plain words ("the supplied cup", "the camera move from the supplied video"); do not refer to files by number or id.
- For edits say "strictly edit the supplied source video"; to continue a clip say "continue from the supplied previous clip".
- For complex scenes, list the shots in order, then a style and constraint package: stable faces, natural motion, no deformation, no watermark, no logo and no subtitles unless intended.
请求
curl -X POST https://www.bananapro.site/api/v1/videos/generate \
-H "Authorization: Bearer sk-your-api-key" \
-H "Content-Type: application/json" \
-d '{
"model": "seedance2",
"mode": "standard",
"type": "text-to-video",
"prompt": "A cinematic drone shot over a futuristic coastal city at sunrise",
"aspect_ratio": "16:9",
"duration": "8",
"resolution": "1080p",
"seed": 12345
}'响应200
{
"success": true,
"data": {
"task_id": "task_seedance2_123",
"credits_used": 175,
"remaining_credits": 825,
"model": "seedance2",
"mode": "standard"
}
}示例中的 credits_used 数值仅供说明。实际消耗会在提交时计算，并由 API 返回。
查询任务
/api/v1/videos/{task_id}status
pending- Accepted and waiting to start. Keep polling.
processing- Running. Keep polling.
completed- Finished. Read video_url; output holds the full result.
failed- Ended without a result. error_message says why and credits_refunded shows what was returned.
Poll every 5 to 10 seconds and stop at completed or failed, or register a webhook to be notified instead. Failed tasks are refunded automatically.
请求
curl https://www.bananapro.site/api/v1/videos/task_abc123 \
-H "Authorization: Bearer sk-your-api-key"响应200
{
"success": true,
"data": {
"task_id": "task_abc123",
"model": "seedance2",
"status": "completed",
"output": { "video_url": "https://..." },
"video_url": "https://...",
"error_message": null,
"credits_used": 175,
"credits_refunded": 0,
"created_at": "2026-10-04T10:00:00.000Z",
"updated_at": "2026-10-04T10:01:12.000Z",
"completed_at": "2026-10-04T10:01:12.000Z"
},
"request_id": "req_abc123"
}等待结果
TASK_ID=task_abc123
while true; do
TASK=$(curl -s https://www.bananapro.site/api/v1/videos/$TASK_ID \
-H "Authorization: Bearer sk-your-api-key")
STATUS=$(echo "$TASK" | jq -r '.data.status')
if [ "$STATUS" = "completed" ] || [ "$STATUS" = "failed" ]; then
echo "$TASK" | jq
break
fi
sleep 10
done定价
| Model / Resolution | 4s | 8s | 12s | 15s |
|---|---|---|---|---|
| seedance2-fast / 720p | 30 | 65 | 95 | 120 |
| seedance2 / 720p | 40 | 80 | 120 | 150 |
| seedance2 / 1080p | 90 | 175 | 265 | 330 |
Prices are for the standard and wild modes with text/image inputs. The real mode costs 1.2x before final credit rounding. Omitting mode uses a separate fixed price table with slightly different totals. Video or audio references add per-second media-reference pricing.
功能特性
- 文生视频生成
- 图生视频生成
- 支持图片、视频和音频参考输入
- Fast 与 Pro 两种模型
- 标准、真人、狂野三种渲染模式
- 支持 4-15 秒输出