GoogleFreeDeveloperByteDance
ReleasedSeedance 2.5 · Jul 2026
Native audioYes
Max resolution1080p
Max clip length30s native (180s beta)
Pricing from~$0.22 / sec (480p)
Key specs
| Developer | ByteDance |
| Origin | China |
| Released | Seedance 2.5 · Jul 2026 |
| Native audio | Yes |
| Max resolution | 1080p |
| Max clip length | 30s native (180s beta) |
| Availability | Proprietary |
| Available via | fal.ai · Volcano Engine API · Dreamina |
| Pricing from | ~$0.22 / sec (480p) |
Where Seedance 2.5 shines
- A native 30-second shot in one pass
- Audio generated with the video, in sync
- Up to 50 reference inputs for consistency
- ~20% better prompt adherence than 2.0
Best for
Use the Seedance 2.5 AI video generator when a single unbroken shot has to carry the story: 30 seconds of synced audio, consistent faces and believable physics. Seedance 2.5 reference-to-video locks characters, products and style from up to 50 inputs.
30-second ads and explainers in one takeDialogue scenes with lip-synced audioAction, sports and multi-subject motionCharacter and product consistency from references
Compare Seedance 2.5 with other models Does Seedance 2.5 have native audio? See the data Good to know
- !1080p ceiling — no true 4K master
- !Premium per-second pricing natively
- !The 180-second ultra-long mode is beta
Background. Seedance 2.5 is developed by ByteDance, the company behind TikTok and CapCut. It was announced in June 2026 at the Volcano Engine FORCE conference and released on 31 July 2026, first in ByteDance's Dreamina and Jimeng apps. Natively it runs through the Volcano Engine API; on Vivideo the Seedance 2.5 AI video generator is available online with no separate account.
How to use Seedance 2.5 on Vivideo
1
Open Vivideo and start a new video.
2
Select Seedance 2.5 as your model — or let the Video Agent pick it for you.
3
Describe your shot (or upload an image) and set duration and aspect ratio.
4
Generate with Seedance 2.5, then refine, add a voice or avatar, and export for any platform.
Seedance 2.5 AI Video Generator — 30 Seconds in One Shot
Vivideo runs ByteDance's Seedance 2.5 straight in the browser — no ByteDance signup, no app, no queue to babysit. Prompt it once and get 30 continuous seconds back with sound already in sync, ready to export without a watermark.
Seedance 2.5 shares that browser tab with 30+ other AI video models, so a 30-second Seedance take can sit in the same timeline as a 4K Veo 3.1 hero shot — one subscription, no per-clip metering, nothing to install.
A Full 30 Seconds, Generated in One Pass
Seedance 2.5 generates 30 continuous seconds — no stitching, no scene-cut splicing, no visible seams. Faces, wardrobe, lighting and physics hold from the first frame to the last, which is what makes a single take usable as a finished ad or scene.
On Vivideo you generate that 30-second Seedance 2.5 footage online and export it watermark-free — no ByteDance account, no downloader.
Native 30-second single-pass generation
Character identity held across the whole clip
An ultra-long beta mode reaching 180 seconds
Sound and Picture Generated Together
Seedance 2.5 creates audio jointly with the video rather than dubbing it afterwards, so lip sync, impact timing and ambience line up. Wrap a line of dialogue in double quotes and your character delivers it.
Prefer your own voice? Swap in AI narration, a cloned voice or a music bed on top of the generated track in Vivideo, then export.
Reference-to-Video: Up to 50 Inputs
Feed Seedance 2.5 as many as 50 multimodal references — roughly 30 images, 10 video clips and 10 audio files — and it keeps a face, product, location or voice consistent across the shot.
That is how you keep a brand identical across a campaign: reference once, then run Seedance 2.5 text-to-video or image-to-video for every cut.
Write the beat sheet — 30 seconds of prompt-driven action
Start from one still and let it run for half a minute
Reference-to-video for characters and products
What a 30-Second Seedance 2.5 Generation Gets You on Vivideo
Who Needs a Full 30 Seconds in One Generation?
Seedance 2.5 is the pick whenever one long, coherent shot beats a pile of short ones.
From One Seedance 2.5 Take to a Finished, Localized Video
Vivideo wraps the whole pipeline around Seedance 2.5: draft cheaply while you tune the prompt, commit to a 1080p 30-second take, then caption, score and dub it into 30 languages — all in the browser, without ever exporting to another tool.
About Seedance 2.5 on Vivideo
Seedance 2.5 is the newest video generation model from ByteDance, released at the end of July 2026 and shaped by the same short-form instincts that run through Douyin and CapCut. What sets it apart is a single number: 30 seconds produced in one pass, with no stitching and no seams.
Vivideo hosts Seedance 2.5 so you never touch a ByteDance login or the Volcano Engine console. It sits alongside 30+ frontier models on one subscription, running text-to-video from a prompt, image-to-video from a still, or reference-to-video from as many as 50 supplied inputs — and you can hand any individual shot to a different model.
The headline change over Seedance 2.0 is duration with coherence. Earlier models gave you a few seconds and left the continuity to your edit; Seedance 2.5 holds a character's identity, the lighting and the physics across a full half-minute, which is long enough for a complete ad, explainer beat or scene.
Seedance 2.5 also generates audio jointly with the picture instead of dubbing it afterwards, so lip sync, footsteps and impacts land on the right frame. Put a line of dialogue in double quotes inside your prompt and your character says it — one of the fastest ways to a finished, social-ready shot.
Seedance 2.5 has trade-offs: 1080p is the ceiling rather than 4K, premium per-second pricing applies natively, and the 180-second ultra-long mode is still beta. On Vivideo you can generate the take with Seedance 2.5 and switch a hero shot to Veo 3.1 or LTX-2 when a project genuinely needs 4K.
Is Seedance 2.5 free? Vivideo hands you daily credits to try it without a card or a ByteDance login, which is enough to learn how a 30-second prompt behaves. Paid plans cover full-resolution finals, watermark-free exports and the longer projects you build out of them.
Loved across every platform
Free AI video generator reviews from real creators
Rated 4.8 out of 5 — 1,624 reviews across Trustpilot, Google Play, App Store, Capterra, G2
Seedance 2.5 Next to the Other Frontier Video Models
Watch One Unbroken Seedance 2.5 Take
One prompt, one pass, thirty seconds of synced sound and motion — see it before you spend a credit.
Make Your First Seedance 2.5 Video Free
Prompt it, hand it a photo, or feed it up to 50 references — Seedance 2.5 returns 30 unbroken seconds with sound. Free daily credits to start, clean exports when you upgrade.
Seedance 2.5 FAQ
Is Seedance 2.5 free to use?
Yes — Vivideo gives you free daily credits to run Seedance 2.5, with no credit card and no ByteDance signup. Because a 30-second generation burns far more compute than a five-second one, draft at the lowest setting while you tune the prompt; a paid plan covers full-length 1080p finals and removes the watermark.
What is new in Seedance 2.5 vs Seedance 2.0?
Seedance 2.5 generates a full 30 seconds in one pass instead of a short clip, keeps characters consistent across it, accepts up to 50 reference inputs and follows prompts roughly 20% more closely. On Vivideo you can run Seedance 2.5 and Seedance 2.0 on the same prompt and keep the better take.
How long can a Seedance 2.5 video be?
Seedance 2.5 makes a native 30-second video in a single generation — no stitching or scene-cut splicing — and an ultra-long beta mode reaches 180 seconds. On Vivideo you can chain Seedance 2.5 shots into finished videos up to 10 minutes.
Does Seedance 2.5 generate audio?
Yes — Seedance 2.5 generates sound and picture together rather than one after the other, so lip sync, impact timing and ambience line up. Put dialogue in double quotes in your prompt and the characters speak it.
What is Seedance 2.5 reference-to-video?
Reference-to-video lets Seedance 2.5 take up to 50 multimodal references — around 30 images, 10 video clips and 10 audio files — so a face, product, location or voice stays consistent. It is the fastest way to keep a brand or character identical across shots.
What resolution does Seedance 2.5 support?
On Vivideo, Seedance 2.5 delivers finals up to 1080p, across aspect ratios from cinematic 21:9 to vertical 9:16 — ByteDance renders the take natively and Vivideo handles the finishing pass to 1080p. If you need a true 4K master, keep that one shot on Veo 3.1 or LTX-2.
How do I use Seedance 2.5 online free?
Sign in to Vivideo, pick Seedance 2.5 in manual mode, and generate — free daily credits, no ByteDance login and nothing to install. It is the quickest route to a free Seedance 2.5 AI video generator in your browser.
Who makes Seedance 2.5?
Seedance 2.5 is ByteDance's video model — the company behind TikTok and CapCut. It was announced in June 2026 and released at the end of July 2026, and you can use it on Vivideo with no ByteDance account.
Is Seedance 2.5 good for action and dialogue?
Yes — Seedance 2.5 was built for multi-subject interaction, so sports, dancing, fighting and object collisions hold together, and quoted dialogue arrives lip-synced. That combination is what makes a 30-second single take usable.
How much does Seedance 2.5 cost?
Natively Seedance 2.5 is metered per second through ByteDance's API. On Vivideo it is included in one subscription alongside 30+ models, so you do not pay per Seedance 2.5 clip — free to try, affordable to scale.
Can I use Seedance 2.5 for image-to-video?
Yes — Seedance 2.5 runs text-to-video, image-to-video and reference-to-video. Upload a still on Vivideo, pick Seedance 2.5, and it animates into a 30-second shot with sound.
Every top model, one subscription
Each model is one of 30+ in Vivideo — switch per shot to get exactly the look you want.
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A full 30 seconds in one shot, with native audio.
AudioUp to 15sUltra-wide
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AudioUltra-wide
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