SeeFlash

Seedance 2.5 Flash AI Video Generator

Fast Text, Image and Reference to Video With Native Audio

Strictly Prohibits Adult/NSFW Content
CREATEGenerate your first Seedance 2.5 Flash video
Live
Add inputsAttach images, videos, or audio that are part of what you want to create.
0/2

JPG, PNG, WebP · 20 MB max

0/3

MP4, WebM, MOV · 100 MB max

0/3

MP3, WAV, M4A, FLAC · 50 MB max

Just add the material you need. The generator will use it automatically.

0 / 5000
Describe one continuous shot: subject, action, camera movement, lighting and sound, in the order they happen. Attach an image to animate it, or add image, video and audio references to guide the shot.
Choose modelCompatible models · settings update automatically

Only live routes are selectable. Your prompt stays in place when you switch.

Aspect ratio
Duration
Resolution
Background
Prompt detail
Quality
Complexity
Format
This generation−25creditsCost guide

Your video will appear here

What Is Seedance 2.5 Flash?

Seedance 2.5 Flash is the speed-focused edition of ByteDance’s Seedance 2.5 video model. SeeFlash runs it in your browser: write a shot, animate a first frame, or guide the scene with image, video and audio references, then download an MP4 whose sound is generated with the picture. Every request shows its model, length, resolution and credit cost before it starts.

Seedance 2.5 Flash Features

Three ways Seedance 2.5 Flash gives you more control over the result you walk away with.

Built for Fast Drafts

Seedance 2.5 Flash is the quicker edition of Seedance 2.5, made for trying several takes of an idea instead of waiting on one. Draft at 480p, then render the take you like at 720p.

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Picture and Sound Together

Dialogue, ambience, music and sound effects are generated on the same timeline as the picture, so the clip arrives with audio that matches the action. Turn audio off per request when you need a silent clip.

Text, a Frame or References

Write a scene from scratch, animate a first frame with an optional last frame, or attach permitted reference images, clips and audio to guide characters, products, motion and sound. The mode follows what you attach.

Why Choose Seedance 2.5 Flash?

SeeFlash is built for quick iterations with Seedance 2.5 Flash: the mode follows what you attach, your prompt stays in place when you switch models, and every finished video lands in your history so you can rerun it with one change.

Speed

Made for Quick Iteration

Use Seedance 2.5 Flash for drafts, social variations and concept tests, and switch to Seedance 2.5 in the same workspace when a shot needs the full model.

Native audio

Sound in the Same Pass

Ambience, effects, music and dialogue are generated with the picture. Switch audio off per request when you need silence.

Model choice

Seedance Models Side by Side

Seedance 2.5 Flash, Seedance 2.5 and Seedance 2.0 sit in one picker; your prompt and attachments stay when you switch.

Transparent cost

Credits Shown Before You Generate

Length, resolution and reference video can affect the credit cost. Credits for failed generations return automatically.

How to Generate an AI Video with Seedance 2.5 Flash

  1. 01

    Choose a Starting Point

    Start with a text prompt, upload a first frame, or add image, video and audio references, whichever gives the model the clearest brief.

  2. 02

    Write One Shot

    Describe the subject, action, camera movement, lighting and sound in the order they happen. One continuous shot per prompt reads best.

  3. 03

    Set Length and Format

    Pick 5, 10, 15 or 30 seconds, an aspect ratio and 480p or 720p. The credit cost updates before you generate.

  4. 04

    Review and Iterate

    Check motion, continuity and sound in the preview, download the MP4, or rerun the prompt from your history with one change.

Clear Pricing. Automatic Failure Refunds.

See the credit cost before every generation. Buy a one-time credit pack when you need more; no subscription or automatic renewal.

No subscription

30 credits

A small one-time pack to try it out.

$9.90one time
30 credits
$0.330 / credit
Estimated capacityUp to 2 minimum-cost 5s videosFrom 15 credits per 5s video
  • 30 credits
  • Never expires
  • No subscription required

No subscription

120 credits

For a focused batch of generations.

$39one time
120 credits
$0.325 / credit
Estimated capacityUp to 8 minimum-cost 5s videosFrom 15 credits per 5s video
  • 120 credits
  • Never expires
  • No subscription required

No subscription

700 credits

Our largest flexible one-time credit pack.

$170one time
700 credits
$0.243 / credit
Estimated capacityUp to 46 minimum-cost 5s videosFrom 15 credits per 5s video
  • Credits added upfront
  • Never expires
  • No subscription required

Capacity uses the lowest-cost live setup for this site. Your exact credit cost changes with the selected model and settings and is shown before generation.

Seedance 2.5 Flash FAQ

What is Seedance 2.5 Flash?

Seedance 2.5 Flash is a faster, lower-cost edition of ByteDance’s Seedance 2.5 video model, announced in November 2026. It keeps the text, image and reference inputs and the native audio of Seedance 2.5, and outputs 480p or 720p video.

How do I use Seedance 2.5 Flash online?

Open the SeeFlash generator, keep Seedance 2.5 Flash selected, write your shot or attach a first frame or references, choose the length, ratio and resolution, and press Generate. The finished MP4 appears in your history, ready to download.

How long can a Seedance 2.5 Flash video be?

You can choose 5, 10, 15 or 30 seconds in 16:9, 9:16, 1:1, 4:3, 3:4 or 21:9, at 480p or 720p. Image-to-video keeps the shape of your first frame.

When should I use Seedance 2.5 instead of Flash?

Use Flash for quick drafts and variations. Switch to Seedance 2.5 in the same picker when a final shot needs the full model; your prompt and attachments stay in place.

How much does it cost?

Videos use credits based on the model, resolution, output length and any billable reference video. You see the exact cost before generating. Credits for failed generations return automatically. One-time credit packs are on the pricing page.

Can I use the videos commercially?

Rights in the videos you generate, including commercial use, follow the terms of service and applicable law, and you need the rights to any image, video or audio you upload. We do not guarantee exclusivity or copyright eligibility.

Ready to Create Your First Seedance 2.5 Flash Video?

Use Seedance 2.5 Flash online: turn a prompt, a photo or reference clips into videos with native sound, 5 to 30 seconds at 480p or 720p. Credits shown first.

Start Creating Now