Seedance 2.5 Flash

What is Seedance 2.5 Flash

Seedance 2.5 Flash is a browser-based AI video generation tool from ByteDance that creates single-take videos up to 30 seconds long. It supports text-to-video, image-to-video, reference-guided generation, and in-video editing. The platform also offers Seedance 2.5, a more advanced model with higher reference limits and resolution.

How to use Seedance 2.5 Flash

1. Choose a mode: Select from Text/Image, Reference, or Edit video tabs.
2. Select a model: Pick Seedance 2.5 Flash (default) or Seedance 2.5.
3. Provide input:
   • For text-to-video: Enter a prompt describing the scene, action, camera movement, and mood.
   • For image-to-video: Upload a start image (and optionally an end frame) to animate.
   • For reference-to-video: Upload reference images, videos, or audio, and refer to them in the prompt using tags like @Image 1, @Video 1, or @Audio 1.
   • For video editing: Upload an MP4 or MOV file (up to 50 MB) and describe the desired change.
4. Adjust settings: Choose resolution (480p or 720p), aspect ratio (16:9, 9:16, 1:1, 4:3, 3:4, 21:9), and length (4–30 seconds). Toggle sound generation on or off.
5. Generate: Click the generate button. The cost is displayed in credits (e.g., 40 credits for a 5-second 480p video).

Features of Seedance 2.5 Flash

• Single-take videos up to 30 seconds in one continuous shot.
• Up to 20 references (images, videos, audio) on Seedance 2.5 Flash; up to 50 on Seedance 2.5.
• In-video editing: Modify existing videos (MP4/MOV up to 50 MB) with text prompts.
• Sound generation: Automatically create dialogue, effects, and ambience.
• Multiple resolutions: 480p and 720p for generation; editing up to 720p (Seedance 2.5 Flash) or 1080p (Seedance 2.5).
• Flexible aspect ratios: 16:9, 9:16, 1:1, 4:3, 3:4, 21:9.
• Start and end frame control: Animate a photo and set the final frame.
• Prompt-based multi-shot sequences: Use time codes (e.g., 0-2s, 2-5s) to direct camera moves and actions.
• Commercial use allowed under terms of service.

Use Cases of Seedance 2.5 Flash

• Text-to-video: Create cinematic scenes from descriptive prompts, such as a road-trip scene or a 30-second single take.
• Image-to-video: Bring photos to life, e.g., make a portrait speak a line with specified emotion.
• Reference-guided generation: Place the same character in new scenes, combine two characters from separate images, or insert a person into a location photo.
• Video editing: Transform existing footage, such as changing colors, seasons, or materials (e.g., stone to ice).
• Multi-shot storytelling: Generate several shots from one prompt by using "Cut to" for new scenes.

Pricing

Seedance 2.5 Flash operates on a credit system. Every visitor receives 10 free credits daily, enough for one 5-second 480p video with the free model Seedance 2.0 Mini. Seedance 2.5 Flash videos require credits from a plan or credit pack. For example, generating a 5-second 480p video costs 40 credits. Pricing plans range from $0 to $671, with 10 offer variations.

FAQ

Is Seedance Flash free?
Partly. Every visitor gets 10 free credits a day, enough for one 5-second 480p video with the free model, Seedance 2.0 Mini. Seedance 2.5 Flash videos use credits from a plan or a credit pack.

How do I write a good Seedance 2.5 Flash prompt?
Describe the subject, one clear action, the camera movement, the light, and the sound. For several shots in one video, write one shot per line and start each new shot with "Cut to". Test a prompt at 480p first, then make the version you publish at 720p.

How do I use reference images, videos, and audio in Seedance Flash?
Choose the Reference tab, upload your files, and refer to them in the prompt by their tags, such as @Image 1, @Video 1, or @Audio 1. Seedance 2.5 Flash takes up to 10 images, 5 videos (30 seconds in all), and 5 audio files. Seedance 2.5 takes up to 30 images, 10 videos, and 10 audio files. Seedance 2.0 takes up to 9 images, 3 videos (15 seconds in all), and 3 audio files. Each second of reference video adds to the price.

Can Seedance Flash edit a video I already have?
Yes. Choose Edit video, upload an MP4 or MOV file up to 50 MB, and describe the change. Seedance 2.5 Flash edits at up to 720p and uses the first 30 seconds. Seedance 2.5 edits at up to 1080p and uses the first 30 seconds. Seedance 2.0 edits at up to 4K and uses the first 15 seconds. Editing uses credits per second of the source video.

Can I use Seedance Flash videos commercially?
Yes. Under the Seedance Flash terms of service, you may use the videos you create, including commercially, as long as the content follows the terms and the law where you live.