Verified September 8, 2026

Seedance 2.5

ByteDance's latest Seedance video model — verified release status, API specifications, multimodal reference limits, editing features and official sources.

Direct answer

Seedance 2.5 is ByteDance's newest officially released Seedance video-generation model. ByteDance launched it on July 31, 2026. It supports up to 30 seconds of audio-video generation in one pass, multimodal reference input of up to 30 images, 10 videos and 10 audio clips, multi-round video extension, and timestamp-level editing.

Seedance 2.5 is now documented for API use by BytePlus under the model ID dreamina-seedance-2-5-260628. The current BytePlus API documentation lists 480p and 720p output, 24 fps, and 4–30 second generation.

seedance2-video.com is independently operated by Vividra Labs LLC and is not a ByteDance-owned official website.

Reference table

Key facts at a glance

FactVerified value
DeveloperByteDance Seed
ModelSeedance 2.5
Official launchJuly 31, 2026
API model IDdreamina-seedance-2-5-260628
API statusAvailable in current BytePlus documentation
API output resolution480p / 720p
Frame rate24 fps
API duration4–30 seconds
Single-pass maximumUp to 30 seconds
ImagesUp to 30 reference images
VideosUp to 10 reference video clips
AudioUp to 10 reference audio clips
Native audio-videoYes
Text-to-videoSupported
Image-to-videoSupported
First + last frameSupported
Multimodal referenceSupported
Video editingSupported
Multi-round extensionSupported
Timestamp-level editingSupported
4K API outputNot listed for Seedance 2.5 in the current BytePlus enhanced-generation API documentation
Site affiliationIndependent third-party interface; not affiliated with ByteDance
Last verifiedSeptember 8, 2026

API status

Is the Seedance 2.5 API available?

Yes. Current BytePlus documentation lists dreamina-seedance-2-5-260628 as a supported enhanced Seedance video-generation model.

The API supports text-to-video, image-to-video with first-frame or first-and-last-frame input, image/video/audio multimodal references, combined reference workflows and video editing.

  • 480p or 720p
  • 24 fps
  • 4–30 seconds
  • MP4 output

Historical note: ByteDance's July 31 launch announcement said API access was “coming soon” on that date. BytePlus subsequently published current generation documentation; the launch-day statement is historical.

Documented output

Seedance 2.5 API specifications

ParameterCurrent BytePlus documentation
API model IDdreamina-seedance-2-5-260628
API output resolution480p / 720p
Frame rate24 fps
API duration4–30 seconds
Text-to-videoSupported
Image-to-videoSupported
First + last frameSupported
Video editingSupported

Claim check

Does Seedance 2.5 support 4K?

Current BytePlus API documentation does not list 1080p or 4K output for the dreamina-seedance-2-5-260628 enhanced-generation API model. It currently lists 480p and 720p at 24 fps.

This does not prove that every ByteDance consumer surface or future Seedance 2.5 deployment is permanently limited to 720p. It only describes the current documented BytePlus API output as verified on September 8, 2026.

Do not repeat pre-release claims of native output at 4K as an established Seedance 2.5 API fact.

Version delta

What changed from Seedance 2.0?

FeatureSeedance 2.0Seedance 2.5
Official launchFeb 12, 2026Jul 31, 2026
Single-pass durationUp to 15sUp to 30s
Reference images930
Reference videos310
Reference audio310
Long-form workflowShorter scenes30s + multi-round extension
Timestamp editingMore limitedExplicit timestamp-level editing
Clay-render reference—Enhanced / supported in official launch material
API model IDdreamina-seedance-2-0-260128dreamina-seedance-2-5-260628
Current BytePlus documented resolution480p / 720p / 1080p / 4K for enhanced 2.0480p / 720p for 2.5

Resolution support and generation quality are different questions: BytePlus currently documents higher maximum API output resolutions for Seedance 2.0, while Seedance 2.5 adds longer generation, a much larger multimodal reference budget and more advanced editing.

Input budget

How many references can Seedance 2.5 use?

Up to 50 multimodal reference assets in total, consisting of up to 30 images, 10 videos and 10 audio clips, according to ByteDance's official launch announcement.

ReferenceMaximum
Images30
Videos10
Audio10
Total potential assets50

Core capabilities

Editing, extension and longer storytelling

30-second storytelling

Seedance 2.5 generates synchronized audio and video for up to 30 seconds in one pass. This extends the space available for a complete scene, dialogue beat or short narrative without treating separate clips as one native generation.

Larger multimodal reference sets

A workflow can include up to 30 images, 10 videos and 10 audio clips. The limits describe a potential total of 50 reference assets, not 50 images or an unrestricted combined upload.

Multi-round extension

Generated clips can be extended through multiple rounds while carrying forward characters, scene context and audiovisual continuity. Extension is separate from the documented 30-second maximum for a single generation pass.

More precise editing

Official materials describe timestamp-level edits alongside upgraded green-screen, camera-perspective and reference-based editing. BytePlus also identifies video editing as a supported enhanced-generation workflow.

Source boundary

Official model facts vs Seedance2Video product facts

ByteDance develops Seedance 2.5. Vividra Labs LLC operates seedance2-video.com independently. Model facts and Seedance2Video product facts should not be treated as the same source.

ByteDance / BytePlus facts

Model identity, release date, capabilities, API model ID, duration, output resolution and reference limits.

Seedance2Video facts

Site pricing, credits, payment methods, refund policy, commercial terms and which models are actually available in the live generator.

Primary sources only

Official Seedance 2.5 sources

SOURCE OWNER

ByteDance Seed

One-take Creation, Flexible Referencing: Introducing Seedance 2.5

Relevant fact: Launch date, 30-second generation, reference limits, extension and editing
Published / updated: July 31, 2026 · Last checked: September 8, 2026

Open source ↗

SOURCE OWNER

ByteDance Seed

Seedance 2.5 model homepage

Relevant fact: Official model identity and capability overview
Published / updated: Current model page · Last checked: September 8, 2026

Open source ↗

SOURCE OWNER

BytePlus

Enhanced video generation documentation

Relevant fact: Model ID, API modes, 480p/720p, 24 fps, 4–30 seconds and MP4
Published / updated: August 2026 · Last checked: September 8, 2026

Open source ↗

SOURCE OWNER

BytePlus

Dreamina Seedance 2.5 tutorial

Relevant fact: Current generation workflow and request construction
Published / updated: Updated August 31, 2026 · Last checked: September 8, 2026

Open source ↗

SOURCE OWNER

BytePlus

Dreamina Seedance 2.5 prompt guide

Relevant fact: Official prompting guidance for the 2.5 model
Published / updated: Updated August 31, 2026 · Last checked: September 8, 2026

Open source ↗

Citation dataset

Seedance 2.5 verified facts

claim_idclaimvaluescopesource_ownersource_titlesource_dateverified_atconfidence
latest_modelSeedance latest officially released generationSeedance 2.5ByteDance model familyByteDance SeedOfficial launch post2026-07-312026-09-08high
api_model_idBytePlus Seedance 2.5 model IDdreamina-seedance-2-5-260628BytePlus APIBytePlusEnhanced video generation2026-08-172026-09-08high
max_durationCurrent documented API duration4–30 secondsBytePlus APIBytePlusEnhanced video generation2026-08-172026-09-08high
api_resolutionCurrent documented API output480p / 720pBytePlus APIBytePlusEnhanced video generation2026-08-172026-09-08high
reference_assetsMaximum official multimodal references30 images + 10 videos + 10 audioSeedance 2.5 modelByteDance SeedLaunch post2026-07-312026-09-08high

Live product boundary

Try the Seedance models currently available on Seedance2Video

Seedance2Video's current generator availability is determined by the live model selector below. If Seedance 2.5 is not shown, the page remains a reference guide rather than a claim that this site currently provides Seedance 2.5 generation.

Try available Seedance models

People also ask

Quick answers about Seedance 2.5

What is Seedance 2.5?

Seedance 2.5 is ByteDance Seed's latest officially released video-generation model. It expands one-pass generation to 30 seconds, accepts larger multimodal reference sets, generates synchronized audio and video, and adds multi-round extension plus more precise video-editing controls.

When was Seedance 2.5 released?

ByteDance announced and released Seedance 2.5 on July 31, 2026. Its launch post introduced the model and initially described BytePlus API access as forthcoming; current BytePlus documentation now lists the model for enhanced video generation.

Is Seedance 2.5 the latest Seedance model?

Yes. As verified against ByteDance Seed on September 8, 2026, Seedance 2.5 is the latest officially released generation in the Seedance model family, following Seedance 2.0, which launched on February 12, 2026.

Is Seedance 2.5 available through an API?

Yes. Current BytePlus enhanced video-generation documentation lists Seedance 2.5 as a supported and callable model. The documentation covers text-to-video, image-to-video, multimodal reference workflows, combined references and video editing.

What is the Seedance 2.5 API model ID?

The current BytePlus API model ID is dreamina-seedance-2-5-260628. Use that exact identifier when following the current BytePlus enhanced video-generation documentation, and recheck the official model list before production integration.

How long can Seedance 2.5 generate video?

Current BytePlus API documentation lists a generation range of 4–30 seconds. ByteDance also describes up to 30 seconds of audio-video generation in a single pass, with multi-round extension available for longer connected sequences.

18 verified answers

Seedance 2.5 FAQ

What is Seedance 2.5?+

Seedance 2.5 is ByteDance Seed's latest officially released video-generation model. It expands one-pass generation to 30 seconds, accepts larger multimodal reference sets, generates synchronized audio and video, and adds multi-round extension plus more precise video-editing controls.

When was Seedance 2.5 released?+

ByteDance announced and released Seedance 2.5 on July 31, 2026. Its launch post introduced the model and initially described BytePlus API access as forthcoming; current BytePlus documentation now lists the model for enhanced video generation.

Is Seedance 2.5 the latest Seedance model?+

Yes. As verified against ByteDance Seed on September 8, 2026, Seedance 2.5 is the latest officially released generation in the Seedance model family, following Seedance 2.0, which launched on February 12, 2026.

Is Seedance 2.5 available through an API?+

Yes. Current BytePlus enhanced video-generation documentation lists Seedance 2.5 as a supported and callable model. The documentation covers text-to-video, image-to-video, multimodal reference workflows, combined references and video editing.

What is the Seedance 2.5 API model ID?+

The current BytePlus API model ID is dreamina-seedance-2-5-260628. Use that exact identifier when following the current BytePlus enhanced video-generation documentation, and recheck the official model list before production integration.

How long can Seedance 2.5 generate video?+

Current BytePlus API documentation lists a generation range of 4–30 seconds. ByteDance also describes up to 30 seconds of audio-video generation in a single pass, with multi-round extension available for longer connected sequences.

Does Seedance 2.5 support 4K?+

Current BytePlus enhanced-generation API documentation does not list 1080p or 4K for dreamina-seedance-2-5-260628. It lists 480p and 720p. That API-specific fact does not establish a permanent limit for every consumer surface or future deployment.

What resolution does the Seedance 2.5 API support?+

The current BytePlus enhanced video-generation documentation lists 480p and 720p output for dreamina-seedance-2-5-260628, at 24 fps. Resolution availability is an API specification and should not be treated as a direct measure of generation quality.

Does Seedance 2.5 generate audio?+

Yes. ByteDance describes Seedance 2.5 as generating synchronized audio and video in one pass. The model can also accept audio references as part of a multimodal reference workflow, subject to the documented input limits.

How many images can Seedance 2.5 reference?+

Seedance 2.5 can use up to 30 reference images in one generation workflow, according to ByteDance’s official launch announcement. Images form one part of the model’s maximum 50-asset multimodal reference budget.

Can Seedance 2.5 use reference videos?+

Yes. ByteDance says Seedance 2.5 accepts up to 10 reference video clips in a single workflow. Those clips can be combined with image and audio references within the model’s published multimodal limits.

Can Seedance 2.5 use reference audio?+

Yes. Seedance 2.5 accepts up to 10 reference audio clips according to ByteDance’s launch material. Audio references may be combined with up to 30 images and 10 videos in one multimodal workflow.

Can Seedance 2.5 edit existing video?+

Yes. Official materials describe reference-based editing, upgraded green-screen and camera-perspective controls, and timestamp-level editing. BytePlus also documents video editing as one of the supported enhanced-generation workflows for the model.

What is the difference between Seedance 2.0 and Seedance 2.5?+

Seedance 2.5 doubles one-pass duration from 15 to 30 seconds, raises the reference budget from 9/3/3 to 30/10/10 images/videos/audio, and adds stronger extension and timestamp-level editing. Current API resolution listings differ by model.

Where can I use Seedance 2.5?+

BytePlus documents API access for developers, while ByteDance’s own model pages describe official capabilities. Seedance2Video currently exposes only the models shown in its live selector; if 2.5 is absent there, this page is a reference hub.

Is seedance2-video.com the official Seedance website?+

No. Vividra Labs LLC operates seedance2-video.com independently, and the site is not affiliated with ByteDance. ByteDance Seed and BytePlus are the primary sources for model identity, capabilities and API specifications.

Is Seedance 2.5 free?+

There is no single universal free-access answer. ByteDance product access and pricing are governed by the applicable ByteDance or BytePlus terms. Seedance2Video has separate credit pricing for the models currently shown in its generator; see its live pricing page.

Can Seedance 2.5 be used commercially?+

Commercial use depends on the terms of the specific provider and access surface. Review current ByteDance or BytePlus terms for their product. Seedance2Video’s separate Terms govern outputs made through models actually available on this independent site.

Written and verified by Jay Yang, Seedance2Video editorial team. Original publication: June 23, 2026. Last editorial and source verification: September 8, 2026.

Seedance2Video is operated by Vividra Labs LLC and is not affiliated with ByteDance.