Seedance 2.0 Fast is ByteDance's speed-and-cost tier of Seedance 2.0. Send a prompt, a first frame or up to nine reference images and get a 4–15 second clip at 480p or 720p, with optional audio, from one async endpoint.
3–20,000 characters · cite media as Image 1, Video 1, Audio 1
4–15 seconds · default 5
Default 16:9 · adaptive matches your input
Default 720p · no 1080p or 4K on Fast
Output video encoding bitrate. default: return the original video without processing. standard: compress for smaller files and faster downloads. high: lighter compression to preserve more detail than standard. Does not affect price.
Default on · turn off for a silent clip
off by default
returns last_frame_url for chaining
wire shape: tools array with web_search type
wire field: content_filter (boolean) · default true · API only
Try one of these prompts
Credit-based — 1 credit = $0.001 USD. Pay only for completed generations.
One 5-second sample at the cheapest tier.
| Category | Seedance 2.0 Fast Official direct channel, real‑person references allowed. | Seedance 2.0 Fast PR Official Fast model at reseller pricing, real‑person references allowed. |
|---|---|---|
| 480P & uploaded videos | $0.033 Price · 1 second | $0.034 Price · 1 second |
| 480P | $0.057 Price · 1 second | $0.057 Price · 1 second |
| 720P & uploaded videos | $0.073 Price · 1 second | $0.072 Price · 1 second |
| 720P | $0.121 Price · 1 second | $0.121 Price · 1 second |
Seedance 2.0 Fast is the middle tier of ByteDance's Seedance 2.0 video series. ByteDance's own guide puts it this way: use Seedance 2.0 for the highest quality, Seedance 2.0 Fast for a balance of cost and generation speed when top-tier quality is not required, and Seedance 2.0 Mini for the best cost performance. Seedance 2.0 Fast keeps the full input set of the series, including text to video, first and last frames, and image, video and audio references, and outputs 4–15 seconds of 24 fps video at 480p or 720p. On reAPI, Seedance 2.0 Fast runs through one async endpoint and bills per second of video, at a lower rate than the matching Seedance 2.0 channel.
Real-world workflows and production use cases you can build and ship with this model.
Test ten prompt ideas before you commit to a full render. Seedance 2.0 Fast turns each shot description into a moving draft, so the team picks camera moves and pacing from real Seedance 2.0 Fast clips instead of a script.
Draft a shot
Set 9:16, write the hook, and Seedance 2.0 Fast returns a clip sized for Reels, Shorts and TikTok. 720p is enough for phone screens, and Seedance 2.0 Fast can add generated audio, so there is no separate sound pass.
Drop in a product shot as the first frame and describe the move: a slow turn, a pour, a reveal. Seedance 2.0 Fast animates it while keeping the product recognizable, so you can test several Seedance 2.0 Fast cuts of the same ad.
ByteDance built Seedance 2.0 Fast for work where turnaround matters more than top-tier detail. Iterate on prompts, pick a winner, then render the final with Seedance 2.0 if you need 1080p or 4K.
Each Seedance 2.0 Fast channel bills less per second than its Seedance 2.0 counterpart at the same resolution, and clips with an uploaded reference video bill on a cheaper tier still. Failed jobs refund automatically.
Prompts, first and last frames, up to nine reference images, three reference videos and three audio tracks all carry over. Move a request between Seedance 2.0 and Seedance 2.0 Fast by changing one model field.
Seedance 2.0 Fast and standard Seedance 2.0 take the same request. The tiers differ on resolution, price and turnaround.
Comparison reflects ByteDance's published Seedance 2.0 series documentation and reAPI's implementation as of November 2026, and may change.
Sign up and create a key in the dashboard. No card is needed to start testing Seedance 2.0 Fast.
OpenPOST to /api/v1/videos/generations with model set to doubao-seedance-2.0-fast-face and your prompt. You get a task ID right away.
OpenGET /api/v1/tasks/:id until the status is completed, then download your Seedance 2.0 Fast clip.
Opencurl -X POST https://reapi.ai/api/v1/videos/generations \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "doubao-seedance-2.0-fast-face",
"prompt": "A street dancer spins under neon signs at night",
"size": "9:16",
"resolution": "720p",
"duration": 5
}'Rejected synchronously with the failing field named. Check enum values, ranges, and URL fields — nothing is charged.
401 means a missing or invalid Bearer key; 402 means the reserve exceeds your balance. Manage keys and credits in the console.
Reference material and outputs pass automated moderation. Rejected tasks fail with a clear error and a full refund.
A task that reaches a failed state is never charged — the reserve refunds automatically. Keep the task id and retry when ready.
Common questions about this model.
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