Models › Video models

Seedance 2.5

Up to 30s in ONE unbroken take · synced audio · cannot take a photo of a person as a reference

ByteDance · video model

Default pickFeatured

4–30sclip length

1080pbest resolution of 3

Native soundspeech and world audio in the render

up to 9reference images

Seedance 2.5 is one of 27 video models Hermoso can render a video ad, product sizzle or UGC clip with. Name it, or leave the model out and the router picks a sound default. The same catalog is available from the app, the MCP server and the CLI, on one account and one credit balance; the exact price of every render is shown in the app before it runs.

What people make with it

UGC testimonials and talking creators
Product sizzles and packshot spins
Cinematic brand films
Faceless product demos and explainers

About ByteDance

ByteDance makes the Seedance video family and the Seedream image models, known for native audio and long unbroken takes.

Made with Seedance 2.5

Real renders from the Hermoso Studio, shown as they came out. Nothing here was made for this page.

Cold brew on marble, slow push-in

A kitchen testimonial in one unbroken take

Skincare close-up, talking to camera

Specs

Lengths	4s5s6s8s10s12s15s20s25s30s
Longest single take	30s in one unbroken shot
Resolutions	1080p720p480p
Aspect ratios	9:1616:91:14:33:421:9
Sound	Native audio (can be switched off per render)
Modes	text to video, image to video, reference to video
Reference images	up to 9 per render in Hermoso (our fidelity cap, measured on paid renders; the model itself accepts more), addressed in the prompt as @Image1, @Image2…
Reference videos	up to 10
Reference audio	up to 10
Edit an existing video	No
Model id	`seedance-2.5`

Where it fits

Each aspect ratio Seedance 2.5 renders maps to a placement:

9:16 for Reels, TikTok, Shorts and Stories
16:9 for YouTube, in-stream and display
1:1 for Feed posts and carousels
4:3 for Presentations and display
3:4 for Pinterest and tablet feed
21:9 for Cinematic banners and hero films

Seedance 2.5 compared with other video models

Model	Lengths	Top resolution	Sound	Refs
Seedance 2.5	4–30s	1080p	Native	up to 9
Seedance 2.0	5–15s	720p	Native	up to 5
Gemini Omni 1.1	4–10s	—	Native	—
Gemini Omni	4–10s	—	Native	up to 3
Veo 3.1	4–8s	—	Native	up to 3
Veo 3.1 Fast	4–8s	—	Native	up to 3
Kling 3.0	5–15s	—	Native	up to 4

See all 27 video models side by side.

Just ask for it

In Claude, ChatGPT, Cursor or any assistant connected to Hermoso, name the model in plain English. Or pick it from the model menu in the app.

Make a 15 second UGC ad for our olive oil with Seedance 2.5, kitchen at golden hour, 9:16.

Render the packshot spin on Seedance 2.5 and post it to TikTok and Reels.

Redo yesterday's ad on Seedance 2.5 with the new label.

Getting the best out of Seedance 2.5

Describe one continuous camera move and where it ends. The model renders motion, not a shot list.
Attach the real product photo as a reference and ask for it matched exactly. Never describe a lookalike.
Name colours in words. A hex code turns into text on screen.
Keep spoken lines short. Roughly two words per second is what a clip can carry cleanly.
Ask for the placement's ratio up front (9:16 for Reels and TikTok) instead of cropping afterwards.

Make a video ad with Seedance 2.5. Start free, and every feature is on every plan.

Start free → See pricing

Frequently asked questions

How long a video can Seedance 2.5 make?

Seedance 2.5 renders clips from 4 to 30 seconds, and up to 30 seconds in one unbroken take. Longer spots are built from several clips.

Does Seedance 2.5 make sound?

Yes. Seedance 2.5 renders native audio with the picture, so a talking creator or a voiceover is part of the same take.

Can Seedance 2.5 use my product photos?

Yes. Attach up to 9 reference images and the product is matched, not reinvented.

How much does Seedance 2.5 cost?

The exact credit price is shown in the app before every render and settled at cost. See pricing for what a credit is worth.