Seedance 2.5 Flash is out in ByteDance's own Dreamina app, where it launched first, worldwide, in early November 2026. On November 12, 2026, BytePlus ModelArk, ByteDance's developer API and how other apps and developers get Seedance, added Flash to its price list with a model ID, but it doesn't accept Flash calls yet. Here is what has happened so far, and when we expect the rest.
Seedance release timeline
| Date | What happened |
|---|---|
| Feb 12, 2026 | Seedance 2.0 launches in ByteDance's apps in China |
| Apr 14, 2026 | Seedance 2.0 reaches BytePlus ModelArk (about two months later) |
| Jun 2026 | Seedance 2.0 Mini, the lowest-cost 2.0 edition, appears |
| Jul 31, 2026 | Seedance 2.5 launches in ByteDance's apps |
| Aug 6, 2026 | Seedance 2.5 reaches BytePlus ModelArk (six days later) |
| Oct 14, 2026 | BytePlus posts a preview page for "the upcoming" Seedance 2.5 Flash, with no date |
| Early Nov 2026 | Seedance 2.5 Flash launches first on Dreamina, worldwide |
| Nov 12, 2026 | BytePlus ModelArk's price list adds Seedance 2.5 Flash: model ID dreamina-seedance-2-5-flash-261115, $7.00 per million tokens, 480p and 720p. The API doesn't accept it yet |
| Mid to late Nov 2026 | Seedance 2.5 Flash takes calls on BytePlus ModelArk (our estimate) |
When will the Seedance 2.5 Flash API come out?
ByteDance hasn't said. Our estimate is mid to late November 2026, and it moved closer on November 12. Here's the reasoning: BytePlus has now published Flash's price and model ID, so the API side is clearly being prepared. The ID ends in 261115, and Seedance IDs end in a version date, so that reads as November 15, 2026. Before that, Seedance 2.5 went from ByteDance's apps to the API in six days, and Flash has been live on Dreamina since early November. That points to days or a few weeks, not months.
The day it opens: we'll post measured run times and side-by-side clips on this site, and Seedance 2.5 Flash goes live on Lumeta the same day.
Where can you use Seedance 2.5 Flash?
- Dreamina, ByteDance's own creative app: pick "Seedance 2.5 Flash" from the model list in AI video, AI Canvas or the AI Agent. It is not the default model, so you have to choose it.
- Other apps and APIs, including Lumeta: once ByteDance opens Flash on BytePlus ModelArk, where it is already priced.
Until then, here is what we'd use. The quickest option today is Seedance 2.5 at 480p, which makes a 5-second clip in a median 1 minute 40 seconds on Lumeta, the cheapest place to run Seedance 2.5 (details at lumeta.ai/pricing#seedance).
Be ready for launch day
Write and test your prompts on Seedance 2.5 now. Flash joins it on Lumeta the day the API opens.
Release questions
When was Seedance 2.5 Flash released?
It launched first on ByteDance's Dreamina app, worldwide, in early November 2026. On November 12, 2026, BytePlus ModelArk listed its API price and model ID, but ByteDance hasn't announced the day the API opens.
Is Seedance 2.5 Flash available on the API?
Not yet, though it is priced: ModelArk lists it at $7.00 per million tokens, but doesn't accept calls to it so far. Our estimate is mid to late November 2026, based on its model ID's November 15 version date and how quickly Seedance 2.5 reached the API.
When was Seedance 2.5 released?
July 31, 2026, in ByteDance's apps, and on BytePlus ModelArk on August 6, 2026.
When was Seedance 2.0 released?
February 12, 2026, in ByteDance's apps in China, and on BytePlus ModelArk on April 14, 2026.
Sources: Dreamina's Seedance 2.5 Flash page, BytePlus's Seedance 2.5 Flash preview, BytePlus ModelArk's price list, ByteDance's Seedance 2.5 launch, BytePlus on Seedance 2.5, ByteDance's Seedance 2.0 launch. The API date is our estimate.