Seedance 2.5
ByteDance's Seedance 2.5 generates cinematic videos up to 30 seconds from text prompts with synchronized audio — voice, sound effects, and background music — built in by default. The newest Seedance generation, with mp4 or high-fidelity mov output for multi-round editing pipelines.
50% less than the priciest provider (6 compared). Same model, same output.
Duration
Duration of the video in seconds (4-30). Billed per second.
Resolution
Video resolution.
Aspect Ratio
Aspect ratio of the generated video. 'adaptive' follows the prompt or the primary media.
Audio
Synchronized audio: voice, sound effects and music generated in the same pass.
Content
What the video contains. Sellers differ in what they allow: 'general' (no faces) can unlock lower prices; 'mature' routes only to sellers without content restrictions.
50% less than the priciest provider (6 compared). Same model, same output.
Your result renders here.
Use Seedance 2.5 via the API
Generate with Seedance 2.5 from your own code. Async by design: submit a generation, get a run id back instantly, poll until it completes. Billed in credits at the best available provider price — from $0.14 per second, audio included.
1 — Start a generation
curl -X POST https://app.scenetra.com/api/v1/generate/seedance-2-5-t2v \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"prompt":"Handheld follow shot of a street food vendor flipping noodles in a wok at night, steam and sparks, neon signs behind, sizzling and crowd chatter","duration":"5","resolution":"720p"}'Response (202)
{
"runId": "run_abc123",
"status": "PENDING",
"model": "seedance-2-5-t2v",
"estimatedCredits": 1156,
"statusUrl": "/api/v1/runs/run_abc123"
}2 — Poll until COMPLETED (every 2-5 seconds)
curl https://app.scenetra.com/api/v1/runs/run_abc123 \
-H "Authorization: Bearer YOUR_API_KEY"Response
{
"runId": "run_abc123",
"status": "COMPLETED",
"progress": { "completed": 1, "total": 1 },
"outputs": [
{ "type": "video", "url": "https://images.scenetra.com/..." }
],
"error": null,
"estimatedCredits": 1156
}Request fields
| Field | Type | Description | Default |
|---|---|---|---|
| prompt* | string | Describe the video: subject, action, camera work, and any dialogue or sound direction. | — |
| duration | string | Duration of the video in seconds (4-30). Billed per second.4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 · 15 · 16 · 17 · 18 · 19 · 20 · 21 · 22 · 23 · 24 · 25 · 26 · 27 · 28 · 29 · 30 | 5 |
| resolution | string | Video resolution.480p · 720p | 720p |
| aspect_ratio | string | Aspect ratio of the generated video. 'adaptive' follows the prompt or the primary media.adaptive · 21:9 · 16:9 · 4:3 · 1:1 · 3:4 · 9:16 | adaptive |
| generate_audio | string | Synchronized audio: voice, sound effects and music generated in the same pass.false · true | true |
| subject_content | string | What the video contains. Sellers differ in what they allow: 'general' (no faces) can unlock lower prices; 'mature' routes only to sellers without content restrictions.general · people · mature | people |
| callbackUrl | string (https URL) | Optional. When the run finishes (completed or failed), we POST the final run status to this URL — same shape as the poll response, plus model, params, and chargedCredits. Best-effort; polling remains the source of truth. | |
Unknown fields are rejected with a helpful 400. Media fields take https URLs. There is no provider parameter — every run is routed to the cheapest capable provider automatically.
Good to know
Billing
Runs bill your account credits at provider cost with 0% markup. The submit response includes the credit estimate; failed generations are refunded automatically. Add ?dryRun=1 to get the estimate without running anything.
Errors
Errors are always { "error": { "code", "message" } } with stable codes: unauthorized, model_not_available, invalid_parameter, insufficient_credits, rate_limited. A failed run is not an HTTP error — poll responses report status: "FAILED" with the reason.
What makes Seedance 2.5 different
Up to 30 seconds in a single generation
Most AI video models cap out at 5-15 seconds. Seedance 2.5 generates up to 30 seconds in one pass — enough for a complete scene with a beginning, middle, and end. No stitching, no continuity drift between clips, no re-prompting to extend. Pick any whole-second duration from 4 to 30.
Synchronized audio, on by default
Every generation ships with native audio: spoken dialogue, ambient sound effects, and background music that match what's on screen. There is no separate audio pass and no lip-sync post-processing — the model generates picture and sound together. Turn it off with a single toggle if you want silent footage.
Built for editing pipelines
Alongside standard mp4, Seedance 2.5 can output mov encoded as yuv444p — higher color fidelity that holds up through multi-round editing and extension workflows where recompression loss normally accumulates. Feed the output back into an edit, upscale, or sequence node on your Scenetra board without visible degradation.
One model, three modes
Text to Video is one of three Seedance 2.5 modes on Scenetra. Start from a first-frame image with Image to Video, or drive generations from up to 30 reference images, 10 videos, and 10 audio tracks with Reference to Video — including audio-only referencing, where a single music track drives pacing and lip-sync.
More made with Seedance 2.5
Parameters
| Parameter | Type | Description | Default |
|---|---|---|---|
| Prompt* | text | Text prompt describing the desired video. Supports English and Chinese. | — |
| Duration | select | Video duration from 4 to 30 seconds. | 5 |
| Resolution | select | Output video resolution.480p · 720p | 720p |
| Aspect Ratio | select | Video aspect ratio, or 'adaptive' to select automatically from prompt context.16:9 · 4:3 · 1:1 · 3:4 · 9:16 · 21:9 · adaptive | adaptive |
| Output Format | select | mp4 by default; mov encodes yuv444p for higher color fidelity in multi-round editing pipelines.mp4 · mov | mp4 |
| Generate Audio | select | Synchronized audio — voice, sound effects, and background music — generated with the video.false · true | true |
Pricing
From $0.14 per second, audio included
Pay per generation — only pay for what you use.
480p
$0.14/s
per second
720p
$0.30/s
per second
What a video costs
| Duration | 480p | 720p |
|---|---|---|
| 5 seconds | $0.70 | $1.51 |
| 10 seconds | $1.40 | $3.02 |
| 30 seconds | $4.20 | $9.03 |
Use cases
Film & storytelling
- Complete 30-second scenes
- Dialogue clips with lip-sync
- Establishing shots
- Previz and animatics
Marketing & ads
- Product spots with music
- UGC-style ads
- Brand stings
- Concept testing
Social content
- Vertical 9:16 stories
- 30-second narratives
- Sound-on hooks
- Series with consistent style
E-commerce
- Product showcase clips
- Lifestyle b-roll
- Seasonal campaign variants
- Listing videos
Frequently asked questions
What is Seedance 2.5?+
Seedance 2.5 is ByteDance's newest AI video generation model. It creates cinematic videos up to 30 seconds long from text prompts, with synchronized audio — dialogue, sound effects, and background music — generated by default. On Scenetra it comes in three modes: Text to Video, Image to Video, and Reference to Video, all usable as nodes in the visual workflow editor.
Is Seedance 2.5 out? How can I use it?+
Yes — Seedance 2.5 is live on Scenetra right now, in all three modes. You don't need an API key, a waitlist, or a separate app: sign up, drop a Seedance 2.5 node onto your board, write a prompt, and generate. Scenetra is web-based and works anywhere.
Is Seedance 2.5 free or paid?+
Seedance 2.5 is a paid model billed per second of video. On Scenetra you pay per generation from your credit balance — there is no subscription tier gating the model and nothing to cancel.
How much does Seedance 2.5 cost?+
On Scenetra, Seedance 2.5 costs about $0.14 per second at 480p and $0.30 per second at 720p, audio included. A 5-second 720p clip costs about $1.51; a full 30-second clip about $9.03. You only pay for what you generate.
How long can Seedance 2.5 videos be?+
Any whole-second duration from 4 to 30 seconds, generated in a single pass. That makes it the longest-form model in the Seedance family — Seedance 2.0 tops out at 15 seconds.
Does Seedance 2.5 generate audio?+
Yes — audio is on by default. The model generates synchronized voice, sound effects, and background music together with the picture, so dialogue is lip-synced without any post-processing. You can disable audio generation with a toggle if you need silent footage.
Is Seedance 2.5 better than Sora 2 or Kling?+
They trade blows: Seedance 2.5's edge is 30-second single-pass generations with native synchronized audio and heavy multimodal referencing (up to 30 images, 10 videos, 10 audio tracks). Sora 2 and Kling 3.0 are stronger picks for some styles and offer higher resolutions. On Scenetra you don't have to choose — all of them are available side by side on the same board, so you can run the same prompt through each and compare.
Can Seedance 2.5 extend or edit an existing video?+
You can feed existing footage in as reference: Reference to Video accepts up to 10 reference videos (30 seconds combined) for motion, style, and continuation-style generations. The model's dedicated frame-level video-editing mode is not yet exposed on Scenetra.
How is Seedance 2.5 different from Seedance 2.0?+
Three headline upgrades: durations up to 30 seconds (vs 15), audio-first generation, and a high-fidelity mov output option for editing pipelines. In Reference to Video mode it also accepts far more reference media — up to 30 images and 10 videos vs 9 and 3. Seedance 2.0 still offers a 1080p tier, while 2.5 currently caps at 720p.
What resolutions and aspect ratios are supported?+
480p and 720p, at aspect ratios 16:9, 4:3, 1:1, 3:4, 9:16, and 21:9 — or 'adaptive', which picks the ratio automatically from your prompt context. At 480p, 16:9 renders 854×480 and 9:16 renders 480×854.
Can I start from an image or use reference media?+
Yes — use Seedance 2.5 Image to Video to animate a first-frame image (with an optional last frame to control the ending), or Reference to Video to guide generations with up to 30 reference images, 10 videos, and 10 audio tracks cited in the prompt as @Image1, @Video1, @Audio1. Both are available as separate nodes on your Scenetra board.
Related models
Seedance 2
ByteDance's Seedance 2.0 generates cinematic videos from text prompts with synchronized audio — voice, sound effects, and background music. Pick any duration from 4 to 15 seconds and resolutions up to 1080p, with per-second pricing that keeps 480p drafting cheap.
View model →Seedance 2 Mini
ByteDance's Seedance 2 Mini is the fast, lower-cost tier of Seedance 2 — generating cinematic videos from text prompts with synchronized audio. Mini delivers the same audio-visual sync at a fraction of the price, ideal for rapid iteration and high-volume social content.
View model →Kling 3.0 Pro
Kuaishou's flagship video generation model delivering stunning visual fidelity. Kling 3.0 Pro supports text-to-video, image-to-video with start/end frames, element references for character consistency, and native audio generation.
View model →Start creating with Seedance 2.5
Use Seedance 2.5 alongside 50+ other AI models in Scenetra's visual workflow editor. No setup required.
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