Seedance 2.5 Opens to Developers August 7, With EvoLink Access
Seedance 2.5 Status on August 7, 2026
Seedance 2.5 reached the market in two steps: creator access on July 31 and public developer API access on August 7. That distinction matters because a model announcement, a consumer product, a provider API, and an EvoLink generation route are different release layers.
| Release layer | Status on August 7, 2026 | What it means |
|---|---|---|
| Official model release | Released by ByteDance Seed on July 31 | Seedance 2.5 is an official production model, not a preview name |
| Jimeng AI and Doubao Pro | Creator rollout began July 31 | Users can generate through ByteDance product interfaces, subject to account and regional access |
| Volcano Ark and BytePlus ModelArk | Public developer API released August 7 | API teams can begin provider-specific integration and live validation |
| EvoLink generation route | Live from August 7 | Generate through text-to-video, image-to-video, or reference-to-video with one EvoLink account and API key |
The upstream API and EvoLink route are both live, but channel-specific contracts still matter. Do not substitute a Volcano Ark or BytePlus model ID inside an EvoLink request, and do not assume that every creator-product control appears in every API workflow.
What the August 7 API Release Changes
Before August 7, teams could study the model, prepare requests, and test creator-product workflows, but they could not treat Seedance 2.5 as a generally available developer dependency. The public API release changes the next action from preparation to verification.
API teams can now evaluate whether Seedance 2.5 solves a real production constraint:
- whether a continuous 20-30 second scene reduces stitching and continuity failures;
- whether a larger reference package keeps people, products, environments, and voices consistent;
- whether timestamp-level instructions make longer prompts easier to direct;
- whether editing preserves approved footage instead of forcing a complete rerun;
- whether the cost per accepted output is better than the cost of repeated short generations.
Confirmed Seedance 2.5 Capabilities
ByteDance's official release confirms the following model capabilities:
| Capability | Confirmed scope | Production value |
|---|---|---|
| Single-pass duration | Up to 30 seconds of audio-video generation | Build a complete ad beat, dialogue exchange, or continuous product story in one generation |
| Multimodal references | Up to 30 images, 10 videos, and 10 audio files | Assign identity, product, motion, environment, style, and sound references within one brief |
| Editing control | Timestamp-level editing of audio and video content | Target a specific time segment without describing the entire video again |
| Professional references | Green-screen, camera-perspective, reference-based, and clay-render workflows | Guide composition, subject motion, spatial layout, and environment changes |
| Native audio-video generation | Audio and video are generated within the same model workflow | Coordinate dialogue, performance, ambient sound, and visible action |
These are model capabilities, not a promise that every API route exposes every control in exactly the same way. Teams should validate the parameter contract on the provider or gateway route they actually plan to use.
Availability by Channel
| Channel | Available use | What to verify before relying on it |
|---|---|---|
| Jimeng AI | Browser-based creator generation | Account access, regional availability, credits, and product-specific controls |
| Doubao Pro | Video generation inside the Doubao product | Account rollout and available settings |
| Dreamina | International creator-product experience | Regional access and whether its controls match Jimeng |
| Volcano Ark | China-facing developer API | Account eligibility, callable model ID, quotas, request contract, and billing |
| BytePlus ModelArk | International developer API | Region, account eligibility, request acceptance, limits, and token accounting |
| EvoLink | Live text-to-video, image-to-video, and reference-to-video routes | Choose the correct EvoLink model ID, confirm current pricing, and measure output acceptance for your workload |
The safest rule is simple: use the contract for the exact channel you intend to call. A working Jimeng generation does not define the BytePlus request schema, and upstream provider identifiers and token rates do not replace EvoLink model IDs or EvoLink pricing.
What This Means on EvoLink
EvoLink's value is not merely adding another model name. A unified API gateway lets teams keep model selection, asynchronous task handling, usage reporting, billing, and fallback policy in one integration while choosing the best video route for each workload.
Seedance 2.5 is available on EvoLink through three production routes:
| EvoLink model ID | Use it when |
|---|---|
seedance-2.5-text-to-video | The scene starts from a written brief without source media |
seedance-2.5-image-to-video | One start image or a start-and-end image pair should anchor the result |
seedance-2.5-reference-to-video | Images, videos, or audio should control identity, motion, environment, style, or sound |
The recommended launch path is:
- Open the Seedance 2.5 model page and choose the workflow that matches your source material.
- Create or reuse an EvoLink API key and use the corresponding EvoLink model ID.
- Run a fixed evaluation set using your own people, products, scripts, and source media.
- Record successful tasks, failed tasks, queue time, charges, accepted seconds, and retry reasons.
- Keep Seedance 2.0 or another verified model as an explicit fallback until 2.5 passes repeated production tests.
Dated Seedance 2.5 Release Timeline
| Date | Event | Developer meaning |
|---|---|---|
| June 23, 2026 | Seedance 2.5 was previewed at Volcano Engine FORCE | Teams learned the model direction, but public access was not established |
| July 31, 2026 | ByteDance Seed officially released Seedance 2.5 | The model and initial creator-product rollout became official |
| July 31, 2026 | Jimeng AI and Doubao Pro rollout began | Creator access became available through ByteDance product interfaces |
| August 7, 2026 | Public developer API released through Volcano Ark and BytePlus ModelArk | API teams could move from preparation to live provider use |
| August 7, 2026 | Seedance 2.5 became available on EvoLink | Teams could use one EvoLink key for the new model while retaining existing task handling and fallback routes |
This timeline will continue to separate upstream release events from production maturity. Future updates should be driven by verified pricing changes, API-contract changes, or original production testing rather than by launch-day marketing alone.
Production Checks Before You Scale
| Check | Why it matters |
|---|---|
| Successful generation with the exact route and model ID | Documentation alone does not prove request acceptance |
| Duration, resolution, and media limits | Creator-product controls may differ from the API contract |
| Actual charge and returned usage | Provider token rates are not the same as the cost of one finished video |
| Failed-task and moderation billing | Failure policy changes the real cost of experimentation |
| Median and p95 queue time | A visually strong model can still miss production deadlines |
| Character, product, and audio consistency across retries | Selected demos do not show repeatability |
| Fallback route | Production should not stop if a new route is limited or unavailable |
FAQ
Has Seedance 2.5 been released?
Yes. ByteDance Seed officially released the model on July 31, 2026. The public developer API followed on August 7, 2026.
What is the Seedance 2.5 API release date?
The public developer API release date is August 7, 2026. This is separate from the July 31 model and creator-product release.
Is Seedance 2.5 available on EvoLink?
What Seedance 2.5 model IDs should I use on EvoLink?
seedance-2.5-text-to-video, seedance-2.5-image-to-video, or seedance-2.5-reference-to-video, depending on the input workflow. Do not substitute an upstream provider model ID in an EvoLink request.Where can developers access Seedance 2.5?
The upstream developer channels are Volcano Ark for China-facing access and BytePlus ModelArk for international access. Eligibility, regions, quotas, and accepted parameters can still vary by account and channel.
Can Seedance 2.5 generate 30-second videos?
Yes. ByteDance's official release states that Seedance 2.5 supports up to 30 seconds of audio-video generation in one pass, plus multi-round extension. Confirm which duration and extension controls are exposed on the route you use.
How many references does Seedance 2.5 support?
The official model release lists up to 30 images, 10 video clips, and 10 audio clips in one request. Provider-specific file formats, sizes, and duration limits still need route-level verification.
Does the Seedance 2.5 API support 4K?
Do not plan an API workflow around 4K. The currently verified provider pricing scope covers 480p and 720p output. Creator-product marketing and API output tiers should be treated as separate claims.
How much does Seedance 2.5 cost?
Should production teams replace Seedance 2.0 immediately?
No. Run matched tests first. Keep Seedance 2.0 or another verified route as a fallback until Seedance 2.5 improves the target workload's accepted-output rate, total production cost, or editing effort over repeated jobs.
Sources
- ByteDance Seed official Seedance 2.5 release
- ByteDance Seedance 2.5 project homepage
- Dreamina Seedance 2.5 official product page
- Volcano Ark Seedance 2.5 model page
- Volcano Ark pricing documentation
- BytePlus Seedance 2.5 model page
- BytePlus ModelArk pricing documentation
- EvoLink Seedance 2.5 integration documentation
