Video model · ByteDance

Seedance 2.5 AI Video Generator

ByteDance’s newest video model. Write a scene and get up to 30 seconds of 720p footage with synced audio, or animate a photo you upload. No watermark on the download.

Length
4–30s
Resolution
480p / 720p
Audio
Synced, optional
From
986 credits
Sample output from Seedance 2.5.

A Seedance 2 AI video generator

Seedance 2.5 is ByteDance’s latest video model, available here next to the rest of the Trendai.video tools. Describe a shot or upload a photo and it renders a finished clip with camera movement and sound, ready for ads, social posts and short films.

It is the current Seedance generation, with strong physical motion, stable faces across long takes, real camera language, and audio that lands on the action rather than drifting underneath it.

What you can control

  • Text to video. Describe subject, action, camera move, lighting and grade in plain language.
  • Image to video.Upload a first frame and the clip inherits that photo’s aspect ratio.
  • First and last frame. Supply both ends and the model plans the motion between them.
  • Reference images. Attach up to 30 and cite them as [Image 1], [Image 2] in the prompt.
  • Synced audio. Ambience, effects and speech generated with the picture, or silence if you prefer.
  • Length and shape. 4 to 30 seconds, 480p or 720p, in seven aspect ratios.

How to use Seedance 2.5

  1. Open the generator and keep Seedance 2.5 selected.
  2. Write the shot: who is in it, what they do, how the camera moves, how it is lit.
  3. Optionally upload a first frame, a last frame, or reference images.
  4. Pick a length, a resolution and whether you want audio.
  5. Generate, then download the MP4 with no watermark.

Prompt ideas

Product ad

A glass perfume bottle spins slowly on a wet black marble surface, droplets catching a warm rim light, the camera orbits and pushes in as the label comes into focus, studio commercial look, soft whoosh and chime audio.

Beach lifestyle

A surfer walks out of turquoise water onto white sand at golden hour, wet hair slicked back, brushes it away and smiles at the camera, gentle handheld follow, filmic 35mm grain, warm colour grade.

Horror atmosphere

A figure stands at the end of a flooded hospital corridor under failing fluorescent lights, water rippling at ankle height, the camera creeps forward as the lights cut out one by one, cold desaturated grade, dripping water and distant breathing audio.

Action chase

A courier on a motorbike weaves through a rain-soaked neon street at night, the camera tracks low beside the wheel then rises to a wide shot as they cut through traffic, reflections on the asphalt, engine roar and rain audio.

No adult content

Trendai.video is safe-for-work only. Nudity, sexual or pornographic content and any other 18+ material are not allowed, and neither are real people depicted without their consent or anything illegal. Prompts and outputs are moderated, blocked requests are refused, and accounts that try to create prohibited content are removed. Read the terms of service before you generate.

Frequently asked questions

Is adult or 18+ content allowed?

No. Trendai.video is for safe-for-work content only. Nudity, sexual or pornographic content and any other 18+ material are not allowed, prompts and outputs are moderated, and accounts that try to create them are removed.

Is this Seedance 2 or Seedance 2.5?

Seedance 2.5, the newer release of ByteDance's Seedance 2 video model. If you want Seedance 2.0 itself, it is also available on Trendai.video as a reference-to-video model: pick Seedance 2.0 Reference in the generator.

How long can a single video be?

Any whole number of seconds from 4 up to 30. Longer clips cost proportionally more credits, and the price is shown before you generate.

What resolutions are available?

480p and 720p. This endpoint has no 1080p tier, so pick 720p for the sharpest result. Aspect ratio can be 16:9, 9:16, 1:1, 4:3, 3:4, 21:9, or adaptive, which lets the model choose.

Can I animate my own photo?

Yes. Upload a first frame and the model animates it while keeping that image's aspect ratio. Add a last frame to steer where the motion ends up, or attach reference images and call them out as [Image 1], [Image 2] in your prompt.

Does it generate sound?

Optionally. Turn audio on and the model produces a soundtrack synchronised to the visuals, including ambience, effects and speech. Leave it off for a silent clip you can score yourself.

How much does it cost?

A 5-second 720p clip costs 986 credits. Cost scales with duration and resolution, and 480p is roughly half the price of 720p at the same length.

Is there a watermark?

No. Videos are delivered clean as MP4, ready to publish or edit.

Start generating

A 5-second 720p clip costs 986 credits. The exact price is shown before you generate, and credits for a failed job are refunded automatically.

Open the generator

Looking for something more guided? Browse AI video effects, the UGC ad studio, or trending video templates.