Castaly · Models · Video
Seedance 2.0: Specs, Pricing and Examples
Generate video with Seedance 2.0 in Castaly: 480p to 4K, fixed lengths up to 15 seconds, built-in audio, and image, video and audio references, with a live price.
Models & Pricing
Prices are in USD. The listed group rate applies before any request-specific multiplier. Your account may have different access or discounts.
| Group | Price | Conditions | Unit | Price |
|---|---|---|---|---|
| Media | Output | 1080p | Per 1M tokens | USD 9.509500000000001 |
| Media | Output | 1080p_input_video | Per 1M tokens | USD 5.8045 |
| Media | Output | 480p | Per 1M tokens | USD 8.645000000000001 |
| Media | Output | 480p_input_video | Per 1M tokens | USD 5.3105 |
| Media | Output | 4k | Per 1M tokens | USD 4.9399999999999995 |
| Media | Output | 4k_input_video | Per 1M tokens | USD 2.964 |
| Media | Output | 720p | Per 1M tokens | USD 8.645000000000001 |
| Media | Output | 720p_input_video | Per 1M tokens | USD 5.3105 |
Seedance 2.0 is ByteDance's video model, and the only Seedance model in Castaly that renders 4K. It runs from 480p to 4K at fixed lengths up to 15 seconds, takes image, video and audio references, and includes audio generation. The live price is on this page.
Specifications
| Setting | Options |
|---|---|
| Model ID | seedance-2.0 |
| Resolution | 480p, 720p, 1080p, 4K |
| Length | 4, 5, 8, 10 or 15 seconds |
| Ratio | 16:9, 9:16, 1:1, 4:3, 3:4, 21:9, adaptive |
| Start from | A prompt, a first or last frame, or a set of references |
| References | Up to 9 images, 3 videos and 3 audio clips |
| Audio | Generate audio switch, no extra cost |
| Billing | Per token |
Sample
The prompt behind this clip:
"One continuous take, no cuts. An empty indoor swimming pool at night, tiled walls and underwater lights. A swimmer in a chrome-finish suit stands on the edge and lifts both arms; the water answers by leaving the pool, rising as a single rotating column of turquoise that twists up past the roof beams and holds there, the emptied tiles glowing underneath. The camera starts low at the pool edge, cranes up alongside the column and tilts to look down into the drained basin. One hard cyan key from the underwater lights, warm sodium spill from the high windows. Real weight and inertia, spray and refraction, no text."
Inputs
Seedance 2.0 accepts a first frame, a last frame, or a set of reference images, videos and audio clips, but not frames and references in the same request. An audio clip cannot be the only reference: pair it with an image or a video.
Editing and extending an existing video in the Studio are on Seedance 2.5, not on this model.
How it is billed
Seedance 2.0 bills by tokens, not seconds. The token count comes from the canvas and the length of the clip, and nothing in the prompt changes it. A reference video adds its own length to the count, at a lower input-video rate. Failed tasks are refunded in full.
The Seedance comparison has dated examples of what a clip costs at each resolution.
Seedance 2.0 or another model?
- Seedance 2.5 for clips longer than 15 seconds, more references, or editing and extending video.
- Kling 3.0 for 4K with per-second billing.
- Wan 3.0 if you want to start from a file or a web page.
FAQ
Does Seedance 2.0 render 4K?
Yes. It is the only Seedance model in Castaly that does. The others stop at 720p or 1080p.
How long can a Seedance 2.0 video be?
You can choose 4, 5, 8, 10 or 15 seconds in the Studio. For longer clips, use Seedance 2.5.
Does audio cost extra on Seedance 2.0?
No. The token rate is the same whether Generate audio is on or off.
Can I use Seedance 2.0 through an API?
Yes. The same model ID works through the Modelflare API with the same account and balance. The request format is in the API documentation.