Seedance 2.5

Pricing and controls

Made by ByteDance

cost = seconds × rate. Requests with reference videos use the reference-video rate instead of (not on top of) the generation rate. Auto length holds 30 seconds and settles on the real length reported.

Market list prices in USD before the TokenRex discount; your wallet is charged in its own currency using TokenRex's standard conversion. A hold is placed before the job starts, settled once when it finishes, and released if it fails. No cache discounts apply.

Controls TokenRex accepts

• prompt — up to 25,000 characters; optional when reference media is sent (one of them is required).
• duration — whole seconds 4–30, or -1 for Auto. For edits use -1; to extend, describe the continuation and request the new seconds.
• resolution — 480p or 720p (no 1080p). aspect_ratio — 16:9, 4:3, 1:1, 3:4, 9:16, 21:9 or adaptive.
• image (first frame) and last_frame_image (needs image) — public URL or base64 data URL; first/last-frame jobs use the adaptive shape.
• reference_images (≤30, ordered), reference_videos (≤10 public HTTPS URLs, 30 s combined), reference_audios (≤10, 30 s combined).
• generate_audio, watermark — booleans. fps is fixed at 24 and output_format at mp4. seed is accepted but does not guarantee the same video.
• camera_fixed is accepted but has no effect. use_virtual_avatar does not bypass real-person or deepfake rules.

Send controls inside input (preferred) or flat beside model — never both. Unknown fields are refused.

Create a Seedance 2.5 video

curl https://tokenrex.ai/api/public/v1/videos \
  -H "Authorization: Bearer $TOKENREX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "seedance-2.5",
  "input": {
    "prompt": "A ceramic teacup on a table. Slow cinematic push-in, gentle steam.",
    "duration": 4,
    "resolution": "480p",
    "aspect_ratio": "16:9",
    "generate_audio": true,
    "fps": 24,
    "output_format": "mp4",
    "watermark": false
  },
  "stream": false
}'

Check and download the job

# 1. Check the job (free — polling never charges)
curl https://tokenrex.ai/api/public/v1/videos/VIDEO_ID \
  -H "Authorization: Bearer $TOKENREX_API_KEY"
# → {"id":"video_…","status":"queued|in_progress|completed|failed","progress":40,"created_at":…,"expires_at":…}

# 2. When status is "completed", download the MP4
curl -L -o result.mp4 https://tokenrex.ai/api/public/v1/videos/VIDEO_ID/content \
  -H "Authorization: Bearer $TOKENREX_API_KEY"

• Save the returned id as soon as POST /v1/videos answers; the job keeps running if your app or browser closes.
• Poll GET /v1/videos/{id} every 5–30 seconds with the same API key. Seedance usually needs minutes; Starlight restoration can take hours.
• Polling and downloads never charge again — the job is settled once, when it first reports completed or failed.
• Do not resend a create request after a timeout: a second request is a second paid job.

Errors

Features and tool support

TokenRex’s exposed interface, not every feature advertised by the provider. “Available” describes the implemented interface, not a successful test of every input or tool.