Seedance 2.5

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 paper boat drifts down a rainy street, close-up, soft morning light",
    "seconds": 5,
    "resolution": "480p"
  }'

curl "https://api.lazu.ai/v1/videos/mjob_...?wait=60" \
  -H "Authorization: Bearer $LAZU_API_KEY"

curl -N https://api.lazu.ai/v1/videos/mjob_.../events \
  -H "Authorization: Bearer $LAZU_API_KEY"

curl --fail https://api.lazu.ai/v1/videos/mjob_.../content \
  -H "Authorization: Bearer $LAZU_API_KEY" \
  -o seedance.mp4

import os
import sys
import time

import requests

BASE = "https://api.lazu.ai"
headers = {"Authorization": "Bearer " + os.environ["LAZU_API_KEY"]}

if len(sys.argv) > 1:
    # Resume a job that was already submitted. Do not submit it again.
    job = {"id": sys.argv[1], "status": "pending"}
else:
    response = requests.post(BASE + "/v1/videos", headers=headers, json={
        "model": "seedance-2.5",
        "prompt": "A paper boat drifts down a rainy street, close-up, soft morning light",
        "seconds": 5,
        "resolution": "480p",
        "aspect_ratio": "16:9",
    }, timeout=60)
    response.raise_for_status()
    job = response.json()
    print("Job:", job["id"], "held:", job["cost_snapshot"]["customer_charge_usd"], "USD", flush=True)

job_id = job["id"]
while job["status"] in ("pending", "running"):
    # wait=60 answers as soon as the job finishes, or after 60 s.
    response = requests.get(BASE + "/v1/videos/" + job_id, params={"wait": 60},
                            headers=headers, timeout=90)
    if response.status_code in (429, 503):
        retry_after = response.headers.get("Retry-After", "15")
        time.sleep(float(retry_after) if retry_after.isdecimal() else 15)
        continue
    response.raise_for_status()
    job = response.json()
    print("Status:", job["status"], flush=True)

if job["status"] == "failed":
    error = job.get("error", {})
    sys.exit(f"Job failed: {error.get('code')}: {error.get('message')} (the hold was refunded)")

# artifact.url needs no key and works for an hour.
with requests.get(job["artifact"]["url"], stream=True, timeout=300) as download:
    download.raise_for_status()
    with open(job_id + ".mp4", "wb") as out:
        for chunk in download.iter_content(chunk_size=1024 * 1024):
            out.write(chunk)

print("Saved", job_id + ".mp4")
print("Charged:", job["cost_snapshot"]["customer_charge_usd"], "USD")

{
  "model": "seedance-2.5",
  "prompt": "A red fox walks through fresh snow at dusk, slow tracking shot",
  "seconds": 8,
  "resolution": "720p",
  "aspect_ratio": "16:9"
}

{
  "model": "seedance-2.5",
  "prompt": "The flower bud opens slowly in the morning light",
  "seconds": 5,
  "resolution": "720p",
  "aspect_ratio": "adaptive",
  "frame_images": [
    { "url": "https://example.com/bud.png", "frame_type": "first_frame" },
    { "url": "https://example.com/bloom.png", "frame_type": "last_frame" }
  ]
}

{
  "model": "seedance-2.5",
  "prompt": "The cat in @图片1 jumps onto a sunlit windowsill and looks outside",
  "seconds": 5,
  "resolution": "720p",
  "aspect_ratio": "9:16",
  "input_references": [
    { "url": "https://example.com/cat.jpg", "type": "image" }
  ]
}

{
  "model": "seedance-2.5",
  "prompt": "Follow the camera move of @视频1. The dancer in @图片1 performs, cutting on the beat of @音频1",
  "seconds": 10,
  "resolution": "720p",
  "aspect_ratio": "adaptive",
  "input_references": [
    { "url": "https://example.com/camera-move.mp4", "type": "video" },
    { "url": "https://example.com/dancer.png", "type": "image" },
    { "url": "https://example.com/track.mp3", "type": "audio" }
  ]
}

{
  "model": "seedance-2.5",
  "prompt": "Time-lapse of clouds over a mountain ridge",
  "seconds": 6,
  "resolution": "1080p",
  "aspect_ratio": "21:9",
  "generate_audio": false
}

{
  "error": {
    "message": "Invalid request: resolution \"4k\" is not supported by this model; allowed: 480p, 720p, 1080p.",
    "type": "invalid_request_error",
    "param": "resolution",
    "code": "invalid_request",
    "lazu": "LZ-1001",
    "docs": "https://lazu.ai/docs/errors#lz-1001",
    "request_id": "req_lazu_...",
    "details": {
      "field": "resolution",
      "reason": "resolution \"4k\" is not supported by this model; allowed: 480p, 720p, 1080p",
      "allowed": "480p, 720p, 1080p"
    }
  }
}

{
  "id": "mjob_...",
  "object": "video",
  "kind": "video",
  "source": "media_job",
  "model": "seedance-2.5",
  "status": "failed",
  "created_at": 1792466151,
  "completed_at": 1792466190,
  "error": {
    "code": "task_failed",
    "message": "..."
  }
}

{
  "id": "mjob_...",
  "object": "video",
  "kind": "video",
  "source": "media_job",
  "model": "seedance-2.5",
  "status": "pending",
  "created_at": 1792466151,
  "cost_snapshot": {
    "customer_charge_microusd": 412000,
    "customer_charge_usd": 0.412,
    "line_items": [...],
    "pricing_version": ...
  }
}

{
  "id": "mjob_...",
  "object": "video",
  "kind": "video",
  "source": "media_job",
  "model": "seedance-2.5",
  "status": "succeeded",
  "created_at": 1792466151,
  "completed_at": 1792466297,
  "progress": 100,
  "artifact": {
    "file_id": "file-lazu-...",
    "url": "https://...?X-Amz-Signature=...",
    "url_expires_at": 1792469897,
    "mime_type": "video/mp4",
    "bytes": 441133,
    "expires_at": 1792725497
  },
  "cost_snapshot": {
    "customer_charge_microusd": 411500,
    "customer_charge_usd": 0.4115,
    "line_items": [
      {
        "dimension": "video_provider_cost",
        "quantity": 1,
        "unit_microusd": 411500,
        "amount_microusd": 411500
      }
    ],
    "pricing_version": ...
  },
  "usage": { "seconds": 4, "resolution": "480p", "ratio": "16:9", "fps": 24 }
}