<!-- Lazu · Seedance 2.5 · https://lazu.ai/models/bytedance/seedance-2.5 -->

# Seedance 2.5 (`seedance-2.5`)

Call seedance-2.5 on Lazu for $0.103 / second.

Seedance 2.5 by ByteDance. Text-to-video, first/last-frame and multimodal reference generation (images, video, audio), 4-30 s at 480p, 720p or 1080p, with native audio.

## Facts

- **Input:** Text · Image · Video · Audio
- **Output:** Video
- **Endpoints:** /v1/videos

## Prices (USD per second of video)

| Resolution | Price |
|---|---|
| 480p | $0.103 / second |
| 720p | $0.231 / second |
| 1080p | $0.569 / second |
| Reference video | Billed by the second with the output |
| Charge | What the provider reports for the finished clip |

Prices checked 2026-11-03 19:15 UTC

## Capabilities

Vision, Audio input, Audio output

## How to call it

```bash
# 1. Submit: HTTP 202 with the job id (mjob_...) and the amount held
curl https://api.lazu.ai/v1/videos \
  -H "Authorization: Bearer $LAZU_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "seedance-2.5",
    "prompt": "A cinematic product reveal on a clean studio table",
    "seconds": 5,
    "resolution": "720p",
    "aspect_ratio": "16:9"
  }'

# 2. Wait: answers when the status changes or the job finishes (60 s at most),
#    with progress and eta_seconds; repeat until status is succeeded or failed
curl "https://api.lazu.ai/v1/videos/mjob_...?wait=60" \
  -H "Authorization: Bearer $LAZU_API_KEY"

# 3. Download the MP4
curl --fail https://api.lazu.ai/v1/videos/mjob_.../content \
  -H "Authorization: Bearer $LAZU_API_KEY" -o video.mp4
```

Video is a job: submit it, wait for it, then download the file. The guide covers every field, references and billing. Guide: https://lazu.ai/docs/endpoints/seedance

## Questions

### How do I call seedance-2.5?

Video generation is a job. POST /v1/videos returns a job id at once. Read GET /v1/videos/{id}?wait=60 until its status is succeeded: each answer comes as soon as the status changes, with progress and eta_seconds, or follow GET /v1/videos/{id}/events for live updates. Then download artifact.url, a link that works for an hour, or GET /v1/videos/{id}/content with your key. Videos made through the API are kept for 3 days.

### Can I use the OpenAI SDK?

Not for video. OpenAI retired its own video API, and its SDK helpers expect different statuses and fields. Call the HTTP endpoints above from any language; they are three plain requests.

### How is it billed?

Per second of video, at the resolution you choose. Submitting holds the price of the seconds you ask for; when the video is done Lazu charges what the provider reports and returns the rest at once, and a failed job is refunded in full. Each job shows in your usage log from the moment it is submitted, as in progress, until it settles.