Seaweed Review
Seaweed is ByteDance's 7B-parameter open research video generation model supporting text-to-video, image-to-video, and audio-synced human character generation.
Verdict
Seaweed (Seed-Video) is ByteDance's foundational video generation model, trained on the equivalent of 1,000 H100 GPUs, and stands out for lifelike human character animation, multi-modal conditioning, and native long-shot generation up to 20+ seconds. It competes with Sora and Kling in capability but is positioned primarily as a research model with downstream applications like Omnihuman for audio-driven avatars. Accessibility is limited — it's a research showcase rather than a polished consumer product.
What it does
Seaweed is a video generation foundational model by ByteDance Seed.
Best for
Seaweed is best for professionals and researchers in the field of video generation and multimedia content creation.
At a glance
Pros & cons
- 7B diffusion transformer with strong motion coherence
- Supports text-to-video, image-to-video, first+last frame conditioning
- Audio-synced human character generation via Omnihuman integration
- Native long-shot generation (20s+) and audio+video co-generation
- Research model — no consumer-facing product or self-serve access
- Requires significant compute to run
- No clear pricing or API availability for general users
Related tools
Frequently asked
- Is Seaweed free to use?
- Not entirely — Not publicly priced; research access only.
- Does Seaweed have memory?
- No persistent memory — sessions don't carry over by default.
- Can Seaweed do voice or images?
- Voice: no. Image generation: yes.
- What are the best alternatives to Seaweed?
- Browse the AI Tools Directory for related tools.
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