ByteDance AI Models Explained: Seedance, Seedream, OmniHuman & Seed3D
A comprehensive guide to all ByteDance Seed AI models available on Seedance. Learn what each model does, when to use it, and how they compare.
ByteDance has built one of the most comprehensive AI generation families in the industry. The Seed model family covers video, image, avatar, and 3D generation — and Seedance.it provides access to all of them through a single platform.
The Seed AI Family
Seedance — Video Generation
Seedance models specialize in image-to-video generation. You provide a source image and a text prompt describing the desired motion.
Seedance 1.0 Lite
- Fast, affordable video generation
- Up to 12 seconds, 480p-1080p
- 36 credits (~$0.36) per generation
- Best for: Quick iterations, social media clips, prototyping
Seedance 1.0 Pro
- Professional quality, 1080p default
- Superior motion coherence
- 124 credits (~$1.24) per generation
- Best for: Marketing content, professional video, cinematic output
Seedance 2.0 (Coming Soon)
- Cinema-grade with native audio synthesis
- Multi-shot narratives
- Up to 2K resolution, 15 seconds
- Currently in B2B early access
Seedream — Image Generation
The Seedream family offers text-to-image generation with multiple model tiers.
Seedream v3
- Reliable generation with adjustable guidance scale
- Good for prompt experimentation
- 6 credits per image
Seedream v4.5
- Enhanced prompt understanding
- Up to 4 megapixel (2048x2048) output
- 8 credits per image
Seedream 5.0 Lite
- Latest generation with deep-thinking comprehension
- Perfect text rendering in images
- Style and color transfer capabilities
- 7 credits per image
Seedream 5.0 Edit
- AI-powered image editing via text instructions
- Inpainting, style transfer, color adjustment
- 7 credits per edit
OmniHuman — Avatar Generation
OmniHuman v1.5 creates hyper-realistic talking avatars from a single portrait photo and audio file.
- Single photo + audio input
- Perfect lip sync with natural expressions
- Gesture generation synchronized to speech
- 720p or 1080p output
- 960 credits per generation
Use cases:
- Talking head videos for social media
- Virtual presenters for education
- Localized content (lip-sync to different languages)
- Digital human experiences
Seed3D — 3D Generation (Deprecated)
Seed3D generated 3D models from images but has been deprecated by the upstream provider. We're evaluating alternative 3D generation models for future integration.
Choosing the Right Model
| Task | Recommended Model | Credits | |------|------------------|---------| | Quick social media video | Seedance 1.0 Lite | 36 | | Professional video content | Seedance 1.0 Pro | 124 | | Text-to-image (standard) | Seedream v3 or 5.0 Lite | 6-7 | | High-res images | Seedream v4.5 | 8 | | Images with text in them | Seedream 5.0 Lite | 7 | | Image editing | Seedream 5.0 Edit | 7 | | Talking avatar / lip sync | OmniHuman v1.5 | 960 |
Workflow Combinations
The real power comes from combining models:
- Image → Video pipeline: Generate an image with Seedream, then animate it with Seedance
- Avatar creation: Generate a portrait with Seedream, then bring it to life with OmniHuman
- Edit → Animate: Upload a photo, edit it with Seedream Edit, then animate with Seedance
Getting Started
Seedance.it provides a unified platform for all these models with a simple credit system. New accounts receive 50 free credits — enough to try several models and find the right workflow for your needs.