Guide · Video

Seedance 2.5 tutorial: make a 4- to 30-second video

Seedance 2.5, ByteDance's video model, starts from an image, references or text, and can also edit an existing video. Here is how to pick the mode, cite your images and set up the clip, in four steps.

6 min readBeginnerUpdated 5 November 2026

In short

To make a video with Seedance 2.5: pick Frames (a start image, plus an end image if you want), Reference (up to 30 images, 10 videos and one reference audio clip), Edit or Text, write the prompt, then set a length of 4 to 30 seconds at 720p or 480p. Sound is generated by default.

Image + prompt
Seedance 2.5
Length
4 to 30 s
Resolution
720p or 480p
References
30 images, 10 videos, 1 audio
Video with sound
The workflow in this guide: an image and a prompt, Seedance 2.5, a video with sound.Open the studio

What Seedance 2.5 does

Seedance 2.5 is one model with four modes. Frames animates a start image and reaches an end image if you give one. Reference builds a video from your reference images, videos and sounds. Edit retouches an existing video. Text starts from the prompt alone. On the canvas, the mode follows what you connect to the node.

4–30 s

per clip, in 1-second steps

720p

by default, or 480p

30 images

as references, plus 10 videos and one audio clip

The four steps

  1. Step 1

    Pick the mode that fits what you have

    In Generate, choose “Seedance 2.5”, then the Frames type (the default), Reference, Edit or Text. On the canvas, add a model node, choose Seedance 2.5 and connect your inputs: a start image for Frames, references for Reference, a video on the video input for Edit.

  2. Step 2

    Add the images, videos and sounds

    In Frames: the start image, and an end image if needed. In Reference, in Generate: up to 30 images, 10 videos and one reference audio clip; audio on its own is refused, it needs at least one image or video with it. In Edit: the video to retouch, 30 seconds at most in Generate; only the first one is edited.

  3. Step 3

    Write the prompt and cite your images

    The prompt is required in every mode. In Generate, type “@” to insert a reference image in the sentence: the app turns it into “the first reference image”, “the second”… when it sends the request. Describe the action, the camera move and the sound you expect.

  4. Step 4

    Set length, resolution and format, then launch

    Length from 4 to 30 seconds (Generate starts at 4 s), 720p or 480p, format auto, 21:9, 16:9, 4:3, 1:1, 3:4 or 9:16. Auto gives 16:9 in Text and Reference; in Frames the framing follows the image, in Edit the source video. In Generate, sound is on by default and can be turned off. The cost is shown before you launch.

The settings at a glance

SettingValuesTip
ModeFrames, Reference, Edit, TextFrames by default in Generate; on the canvas, the mode follows the connected inputs
Length4 to 30 sIn 1-second steps; in Edit, the length follows the source video
Resolution720p, 480p720p by default; 480p costs less while you iterate
Formatauto, 21:9, 16:9, 4:3, 1:1, 3:4, 9:16Auto = 16:9 in Text and Reference
SoundOn or offOn by default in Generate; turning it off does not change the price
Video bitrateStandard, highHigh by default, in advanced settings; mp4 or mov output

Ideas to try

A packshot that comes alive

Frames mode: the product photo as start image, a prompt describing the camera move, 8 to 10 seconds at 720p.

A transition between two images

Frames mode with a start and an end image, generated earlier in the same graph.

A character held for the whole shot

Reference mode: the character, outfit and set as reference images, up to 30, and a prompt that stages them.

Retouch an existing clip

Edit mode: the source video and the edit instruction. The output keeps the length of the source.

Frequently asked questions

Seedance 2.5 or Seedance 2.0: which one should I use?
Seedance 2.5 goes up to 30 seconds, takes 30 reference images and edits video, at 720p at most. The Seedance 2.0 family stops at 15 seconds: 2.0 Fast and 2.0 Mini are the fast, economical versions, at 720p at most, and Seedance 2 Reference to Video reaches 1080p. For a long or heavily referenced shot, 2.5; to iterate fast, 2.0 Fast or Mini.
What resolution does Seedance 2.5 output?
720p by default, or 480p. For 1080p in the same family, Seedance 2 Reference to Video and Seedance 1.5 Pro offer it, on clips of 15 and 12 seconds at most.
Does Seedance 2.5 generate sound?
Yes, by default: the video comes out with a generated soundtrack. You can turn it off before launching; it does not change the price. In Reference mode you can also give one reference audio clip in Generate, with at least one image or video.
How is Seedance 2.5 billed?
Per second of video produced, by resolution: 480p costs less than 720p. When a video goes in (reference or Edit), its seconds are added at a lower per-second rate. Sound and bitrate do not change the price. The cost is shown before you launch.
Can I fix the camera or the seed with Seedance 2.5?
No: Seedance 2.5 has neither a fixed-camera option nor a seed (the node’s Seed field has no effect on this model). Describe the move you want in the prompt (“static camera”, “slow dolly in”). In the Seedance family, only 1.5 Pro offers a fixed camera, on the canvas.
Where can I use Seedance 2.5 on Beemm Vision?
In Generate (“Seedance 2.5”), on the canvas as a model node, in batches with Scale, and from an AI assistant through the MCP server. There is no ByteDance account to open.

Try Seedance 2.5

Open the studio, pick Seedance 2.5 and launch a first 5-second clip at 480p to check the motion.

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