# Seedance 2.5

> Create one-take 30s Seedance 2.5 videos with up to 50 references and native audio. 4–30s, 480p–1080p, first/last frames, credits first, private on MixVio.

- [Canonical Seedance 2.5 page](https://mixvio.ai/models/seedance-2-5)
- [Official model source](https://seed.bytedance.com/en/seedance2_5)

## Route summary

- **Provider:** ByteDance
- **Media:** video
- **Inputs:** Text · Up to 30 images · 10 videos · 10 audio
- **Output:** 480p–1080p video + audio
- **Duration:** 4–30s
- **Native audio:** Yes
- **Credits:** 156–7140 credits
- **Availability:** Available

## Capabilities

- **30-second storytelling:** Tell a complete beat in one take. Seedance 2.5 holds setup, turn, and finish across a continuous 4–30 second clip—without stitching shorter takes.
- **Up to 50 references:** Load one brief: up to 30 images, 10 videos, and 10 audio clips—50 files total. Tag @ImageN, @VideoN, or @AudioN so each file keeps a single role.
- **Native dialogue and mix:** Speech, room tone, and effects generate with the picture. Name who speaks and the room so you can review lip sync and the mix before you publish.
- **White-model blocking:** Use a clay render or textureless block-in as the spatial brief. Seedance 2.5 can follow camera path, scale, and placement, then dress materials and light on top.

## How to use

1. **Start from text, frames, or references:** Use text-to-video for a new scene, a first frame with an optional last frame, or multimodal for up to 30 images, 10 videos, and 10 audio—50 files total. First/last-frame and pack modes cannot be combined. Prefill from a demo if you want—nothing runs until you generate.
2. **Direct motion, camera, and sound:** Write subject, action, setting, camera, and sound. For a 4–30 second take, cover setup, turn, and finish—not a single frozen moment. Tag each file with @ImageN, @VideoN, or @AudioN and say what it provides; vague “use the references” often mixes roles.
3. **Generate, review, then iterate:** Select 4–30 seconds and 480p, 720p, or 1080p, confirm the credit estimate, then generate. Review identity, logos, dialogue, and lip sync before publishing or iterating.

## Pricing

From 156 credits per 4-second 480p clip, up to 7,140 with a full reference-video request. Duration, 480p–1080p, and reference-video seconds change the quote. Confirm the exact reservation before you generate.

- [MixVio pricing](https://mixvio.ai/pricing)

## FAQ

### What is Seedance 2.5?

Seedance 2.5 is ByteDance Seed’s next video model for 4–30 second audio-video clips. On MixVio it creates one private clip per run from text, a first frame with an optional last frame, or a multimodal pack of images, videos, and audio.

[Seedance 2.5 announcement](https://seed.bytedance.com/en/seedance2_5)

### What is Seedance 2.5 best for?

Use it for a 4–30 second one-take, a large owned reference pack, clay-render blocking, or a product and character lock with native dialogue. Write the brief like a shot list—subject, action, setting, camera, and sound—and cover setup, turn, and finish on a longer take.

### What inputs and file limits does Seedance 2.5 support?

Use Text to Video for a scene brief, Image to Video for one owned start frame with an optional end frame, or Multi Reference for owned packs: up to 30 images (≤30 MB each), 10 videos (MP4/MOV, ≤200 MB each), and 10 audio clips (MP3/WAV, ≤15 MB each)—up to 50 files total. Each reference video or audio clip is 2–30 seconds; each media type may total 30 seconds. Audio requires at least one image or video, and first/last-frame mode cannot be combined with a multimodal pack.

### How do I tag references with @ImageN, @VideoN, and @AudioN?

After you upload files, mention each one by index in the prompt—@Image1, @Video1, @Audio1, and so on—and give it one job. Example: “Use @Image1 as the look. Match the camera in @Video1. Follow the beat of @Audio1.” Numbering follows upload order. Vague lines like “use the references” often mix roles.

### Can I edit or extend an existing video with Seedance 2.5?

You can upload an owned clip in Multi Reference, tag it with @VideoN, and describe restaging, a camera change, or what should happen next. MixVio still returns one new private 4–30 second video per run. There is no separate public extend tool, in-place timeline editor, or multi-round session on the current MixVio routes.

### Does Seedance 2.5 generate native audio?

Yes. Public Seedance 2.5 routes return video with synchronized native audio. Describe dialogue, ambience, sound effects, or music in the brief, then review the mix, speech, and lip sync before publishing. Audio on or off does not change the credit quote.

### Which ratios, resolutions, and durations are supported?

Text-to-video supports Auto, 21:9, 16:9, 4:3, 1:1, 3:4, and 9:16. First-frame image-to-video follows the source. Each run produces one 4–30 second clip at 480p, 720p, or 1080p. MixVio does not publish 4K on Seedance 2.5. Duration is the length you select—it is never changed to auto without confirmation.

### How do I keep character or product consistency?

Upload clear owned references of the subject, tag them with @ImageN (and @VideoN when motion must match), and name the same identity, wardrobe, and product details in the prompt. Use the smallest pack that defines identity, wardrobe, scene, motion, and sound. Fine details can still drift on long action or many scene changes—review faces, logos, and labels before publishing.

### How many credits does Seedance 2.5 use?

Seedance 2.5 is not available on the Free plan. Paid plans reserve from 156 credits. Typical anchors: 156 credits for 4 seconds at 480p, 2,490 for 30 seconds at 720p, and 5,970 for 30 seconds at 1080p. Reference-led requests that include video input can reach 7,140 credits because input and output seconds are billed together. The generator shows the exact reservation before submission. Failed runs cost no credits.

### How does Seedance 2.5 compare with Seedance 2.0, MiniMax H3, and Kling 3.0?

Stay on Seedance 2.5 for a one-take lasting 4–30 seconds, 480p–1080p, a pack of up to 30 images / 10 videos / 10 audio, or clay-render blocking. Seedance 2.0 stays on 4–15 seconds with up to 9 images / 3 videos / 3 audio and selectable 720p–4K on text and single-image routes. Choose MiniMax H3 for 4–15 second instruction-led edits at 768p or 2K, or Kling 3.0 Standard for 5/10/15 second cinematic shots. Compare live credits, inputs, duration, and audio before generating.

### Can I use Seedance 2.5 videos commercially?

Paid-plan outputs may be used commercially, subject to the Terms of Service and current ByteDance terms. You must have rights to every prompt, reference, likeness, brand asset, voice, and sound direction. Review identity, logos, dialogue, lip sync, consent, and audio before publishing. MixVio does not guarantee exclusivity or trademark clearance.

### Can I use real faces or celebrity likenesses?

Only use faces, voices, and likenesses you own or are authorized to use. Public figures, deceptive impersonation, deepfake-style face swaps, minors, and other prohibited content can be blocked by MixVio moderation or Provider safety checks. When a request is allowed, still review identity and consent before any commercial or public use.