Seedance 2.5 Flash
Seedance 2.5 Flash is ByteDance’s faster video model for testing several takes or producing clips in volume. It makes videos up to 30 seconds at 480p or 720p, with synchronized sound.
Flash is available in Dreamina. SeedanceAI has published this guide ahead of opening Flash generation here.
Seedance 2.5 Flash settings
- Output resolution
- 480p / 720p
- Longest clip
- Up to 30 seconds
- References per request
- Up to 10 images, 5 videos and 5 audio clips
Dreamina lists text, first or first-and-last frames, and Omni Reference for Flash. Images can guide the subject, video can guide motion, and audio can guide timing or sound. Volcengine also lists video editing among the model’s capabilities.
Flash, standard 2.5 and Draft mode
BytePlus reports nearly twice the generation speed of standard 2.5 and about 34% lower API cost for 720p text-to-video and image-to-video. The speed claim describes model generation, and your total wait also includes the queue.
| Setting | 2.5 Flash | Standard 2.5 | 2.5 Draft mode |
|---|---|---|---|
| Resolution | 480p / 720p | 480p / 720p / 1080p | 480p preview |
| What you get | Standalone clip | Standalone clip | Preview for a separate final generation |
| When to choose it | Try several takes quickly | Deliver at 1080p or use a larger reference set | Review a take before generating the final |
To recreate a Flash shot in standard 2.5, start a new task with the original prompt and references. In Draft mode, the selected 480p preview supplies creative conditions to a separate, billed final generation.
See Dreamina’s guide to Flash and DraftHow to make a video with Seedance 2.5 Flash
Open Dreamina’s video generator, choose Seedance 2.5 Flash, and start with the input that matters most to the shot.
Text to video
Describe the subject, one action and the camera move. Add a sound cue if the timing of a line or a sound effect matters.
Image to video
Use a first frame to establish the subject and framing. Add a last frame when the shot has to land on a specific composition.
Omni Reference
Give each reference a job. Use a photo for the product, a video for the movement, or audio for the beat. Say what to follow in the prompt, then change one detail at a time between takes.
Example prompt for a five-second product shot
A ceramic mug on a wooden table by a window. Start at handle height, slide slowly left, and stop when a beam of sunlight reaches the logo. Keep the mug in focus. In the background, a clock ticks softly.
When does the Flash API open?
BytePlus ModelArk and Volcengine Ark announced that online trials and API calls open on November 15, 2026 at 14:00 Beijing time (06:00 UTC).
BytePlus model ID dreamina-seedance-2-5-flash-261115
Use your provider’s API key to create a video generation task. Save the task ID and query it for the status and video URL. Copy the video before the provider’s download link expires.
What does a Flash clip cost?
These official API estimates are for a single 5-second, 16:9 output. The ranges cover a reference video of 2–30 seconds. Your bill depends on the actual token usage and rate.
| API provider | No video input 480p | No video input 720p | With video input 480p | With video input 720p |
|---|---|---|---|---|
| BytePlus ModelArk | $0.34 | $0.76 | $0.37–$1.45 | $0.84–$3.25 |
| Volcengine Ark | ¥2.21 | ¥4.97 | ¥2.42–¥9.42 | ¥5.44–¥21.17 |
Both providers use a different token rate when you include an input video. Its duration also affects billable tokens. SeedanceAI uses its own credits and displays the quote before you submit a job.
Seedance 2.5 Flash FAQ
Is Seedance 2.5 Flash free to try?
Dreamina lists Flash in its video workspace. Check your account’s access and credit quote before generating. The official cloud APIs publish paid usage rates, and SeedanceAI does not promise a free Flash generation.
See the Seedance free-access guideDoes Seedance 2.5 Flash support 1080p or 4K?
The official Flash API lists 480p and 720p. For native 1080p through BytePlus ModelArk, choose standard Seedance 2.5.
Is Flash the same model as Seedance 2.0 Fast?
Flash belongs to the 2.5 family and can make a clip up to 30 seconds. Seedance 2.0 Fast is a separate 2.0 model with a 15-second output limit.