Made with this app
Seedance 2.5 is a text-to-video app built for creators who need longer, audio-ready clips with precise visual continuity. It renders between 4 and 30 seconds of MP4 video at 480p, 720p or 1080p, with native synchronized audio baked in from the start. You can drive it with a text prompt alone, or anchor it with a still image, an end frame, or a set of reference images. Area-based billing means a vertical social clip costs less than a widescreen cinematic cut at the same duration.
How to use this app
- 1
Describe what you want to create, or upload your source file.
- 2
Pick your options, then press Generate.
- 3
Watch your result appear in the gallery within moments.
- 4
Download, share, or generate again with a new idea.
What you can make
Social Content with Synced Audio
Vertical short-form video for social platforms benefits directly from area-based pricing, since a portrait-orientation clip costs less than a widescreen one. Pair that with native audio sync and you get ready-to-post content without a separate audio pass in an editor.
Storyboard-to-Clip Continuity
Supply a reference image as your opening frame and a second image as your end frame, and Seedance 2.5 interpolates a coherent scene between them. This makes it practical for animatics or proof-of-concept sequences where the first and last beats are already locked.
Long Narrative Scenes
At up to 30 seconds per generation, Seedance 2.5 covers more story ground than most AI video tools. A single prompt can establish setting, character movement, and atmosphere without cutting to a new generation mid-scene, which preserves visual consistency.
Reference-Steered Brand Videos
Feed in frames from your existing brand imagery as reference images to steer the model toward a specific visual style. The output stays closer to your established look than a prompt-only generation, reducing the gap between concept and on-brand final asset.
Ambient and Environmental Loops
Nature scenes, architectural walkthroughs, and mood-setting backgrounds benefit from the full 30-second window and native audio. A forest with wind noise or a city street with ambient sound can be rendered as a single, self-contained file ready for use in presentations or installations.
Prompt ideas to try
Why creators use this app
- Native Audio-Video Sync
- Up to 30s Duration
- Up to 1080p Resolution
- Text, Image & Reference Input
- Reference video and audio steering
- End Frame Control
Tips for better results
Use End Frames for Scene Control
If your composition needs to land on a specific image, supply that image as your end frame. The model will build the motion bridge between your opening and closing frame, giving you far more control over pacing and final composition than a text prompt alone can achieve.
Choose Aspect Ratio Deliberately
Because billing is area-based, a vertical 9:16 clip costs less than the same duration in 16:9 widescreen. Decide early whether your project needs cinematic width or social-friendly height, since that choice affects both the creative framing and the cost shown on the button.
Write the Sound into the Prompt
The audio is synthesised from your description, so a prompt naming only what is visible leaves the soundtrack to chance. Say what the scene sounds like. Name the weather, the surfaces it falls on, and whether there is any music at all. That gives the model a target for the sound as well as for the picture.
Write Duration into Your Prompt
Seedance 2.5 supports 4 to 30 seconds. State your intended duration in the prompt itself. A slow 20 second reveal and a fast 5 second cut pace their motion and their audio very differently, so the wording should agree with the output length you set on the control.
When to choose this app
Choose Seedance 2.5 when you need up to 30 seconds of video with native audio and want to control costs by shooting vertically, or when visual continuity across a clip depends on reference images or an end frame. Seedance 2.0 Mini focuses on fast, affordable output without the extended duration window and reference-steering depth that Seedance 2.5 offers. LTX-2 Pro targets high-resolution output up to 4K, which is a different priority from Seedance 2.5's strength in longer, reference-driven, audio-synchronized storytelling at up to 1080p.
Frequently asked questions
How much control do I have over the sound?
As much as you put in the prompt. This page has no audio upload; the soundtrack is written by the model from your description, so naming the ambience, the weather, the surfaces and whether there is music at all is what steers it. A prompt that describes only the picture will still come back with sound, but it will be the model's guess.
What happens if I provide both a starting image and an end frame?
Seedance 2.5 treats the starting image as the opening composition and the end frame as the target final composition. It generates the motion and audio that connects them into a coherent clip. The quality of both reference images directly affects how smoothly the transition reads.
Is the audio generated separately and then merged, or is it truly native?
The audio is native, meaning it is generated together with the video rather than added as a post-process layer. This produces tighter synchronization between on-screen action and sound, which is particularly noticeable in clips involving motion, impact, or ambient environmental sounds.
Can I use multiple reference images rather than just one starting image?
Yes. Seedance 2.5 accepts a set of reference images, which lets you convey character appearance, location details, or stylistic direction across several visuals at once. This is more expressive than a single frame and helps the model stay consistent with a specific look throughout the clip.
What file format does Seedance 2.5 deliver, and does it include audio in that file?
Seedance 2.5 outputs an MP4 file with audio embedded. You do not need to combine a silent video file with a separate audio track after download. The MP4 is ready for direct upload to editing software, social platforms, or presentation tools without additional processing.
Which AI model powers this app?
This app runs on Seedance 2.5, available through Arteza with no separate account or setup.
Can I use the results commercially?
Yes. Content you generate is yours to use, subject to our content licenses.
How long does a generation take?
Most generations finish in under a minute, and you can watch progress live in the gallery.