Seedance 2.5 in action
What Seedance 2.5 renders on GenFire.
What Seedance 2.5 is best at
30 seconds in a single pass
Ask for anything from 4 to 30 seconds and get it back as one continuous generation, scene changes included — or leave the length off and let the model decide. Nothing is stitched, so there are no seams to hide.
50 reference inputs
Up to 30 reference images, 10 reference clips, and 10 audio takes in a single request — 50 files in total. Address any of them directly in the prompt as @Image1, @Video1, or @Audio1.
Audio in the same pass
Sound design, ambience, and lip-synced dialogue are generated with the picture rather than added after. Keeping audio on costs exactly the same as turning it off.
Start and end frames
Image-to-video takes the frame you start on and, optionally, the exact frame you want to land on — Seedance moves between them and matches the output shape to your source image.
Seedance 2.5 at a glance
Prompt ideas for Seedance 2.5
Built to Seedance 2.5’s strengths — steal these to get started.
How to use Seedance 2.5 on GenFire
- 1
Describe it
Write a prompt — or upload an image or reference media, and pick Seedance 2.5 in the model selector.
- 2
Generate & compare
Render the video, iterate on the prompt, or run the same brief on a sibling model to compare — all from one credit balance.
- 3
Finish & publish
Send the result into GenFire's editor, upscaler, and audio tools, then export platform-ready output.
What Seedance 2.5 actually does
The headline is length. Seedance 2.5 renders 4 to 30 seconds as one continuous generation, with internal scene changes and tempo shifts, where earlier models topped out around 5-15 seconds and anything longer had to be cut together from separate takes. Leave the duration off entirely and the model picks a length to suit the prompt. Because it is one pass rather than several, the lighting, the grade, and the performance carry across a cut instead of resetting at it.
The second change is how much you can hand it. A reference-to-video request accepts up to 30 images, 10 clips, and 10 audio takes — 50 files at once — and you point at them by name in the prompt: @Image1 for a face or a product, @Video1 for a motion or camera move to follow, @Audio1 for a voice. Audio references are the interesting one, because they are how a character keeps the same voice from clip to clip; they need at least one image or video reference alongside them, and it helps to say who is speaking with which take.
What it does not do is resolution. Seedance 2.5 renders at 480p or 720p and has no 1080p or 4K tier — if you need to finish larger, Seedance 2.0 still carries the higher tiers. Everything else runs wherever you work: the browser studio, the API, the MCP server, and the CLI, all against the same model and the same reference limits.
Loved by creators
“Great for creating quick cutscenes and character intros for indie games.”
“I made a book trailer that went viral on BookTok. Sales increased by 300%!”
“Explaining complex exercises with AI generated slow-motion videos has helped my clients immensely.”
Seedance 2.5 — frequently asked questions
What is Seedance 2.5?
Seedance 2.5 is a video generation model that renders up to 30 seconds of multi-shot video in a single pass, with native synced audio and lip-sync. It works from a text prompt, from a starting image, or from a set of reference images, clips, and audio takes.
How long can a Seedance 2.5 video be?
Anywhere from 4 to 30 seconds, produced as one continuous generation with scene changes inside it — no stitching of separate takes. You can also leave the duration unset and let the model choose a length that fits the prompt.
What resolution does Seedance 2.5 support?
Seedance 2.5 renders at 480p or 720p. It has no 1080p or 4K tier — that is a genuine tradeoff against Seedance 2.0, which does offer higher resolutions but caps at shorter clips. Pick 2.5 for length and references, 2.0 when you need to finish at 1080p or 4K.
How many references can Seedance 2.5 take?
Up to 30 reference images, 10 reference clips, and 10 audio takes in one request, to a maximum of 50 files. Refer to them in the prompt as @Image1, @Video1, and @Audio1. Audio references cannot be the only reference — pair them with at least one image or clip.
Does Seedance 2.5 generate sound?
Yes. Sound effects, ambience, and lip-synced speech are generated in the same pass as the picture, not added afterwards. Generating with audio costs exactly the same as generating without it, so there is no reason to turn it off unless you want a silent clip.
What is new in Seedance 2.5 compared with Seedance 2.0?
Longer clips in one pass (up to 30 seconds against roughly 5-15), and far more references — 30 images, 10 clips, and 10 audio takes, against 9, 3, and 3 on 2.0. Seedance 2.5 also drops the speed tiers, so there is a single quality to choose from. The tradeoff is resolution: 2.0 goes up to 4K, 2.5 stops at 720p.
How do I use Seedance 2.5 on GenFire?
It is the default model in the browser video studio, so you can type a prompt and generate straight away. The same model is available through the GenFire API, the MCP server, and the CLI, with the same duration, resolution, and reference limits everywhere.
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