Seedance 2.0: ByteDance's Video Model and How to Get the Best Output
Wanderson Jackson
Updated July 2026. 9-min read. Seedance 2.0 is ByteDance's flagship video model with multimodal inputs, native audio, and some of the best motion control in the market. Here is how to use it well.
Seedance 2.0 is a video generation model built by ByteDance's Seed team. It launched in February 2026 and quickly became the workhorse model for production video pipelines. Version 2.5 followed in July 2026, extending native duration to 30 seconds (3 minutes in beta) and supporting up to 50 multimodal reference inputs.
The model uses a Diffusion Transformer (DiT) architecture and scored Elo 1,269 on text-to-video and 1,351 on image-to-video leaderboards at launch. It is available through Dreamina (ByteDance's global web UI), BytePlus API, and multiple third-party platforms including Avocado AI.
What makes Seedance 2.0 stand out: multimodal reference input. You can feed up to 12 mixed references (images, videos, audio clips) into a single generation using @-syntax. This is more than any other video model available today.
Key Capabilities
Generation modes:
Text-to-video (T2V)
Image-to-video (I2V)
Multimodal reference-to-video: up to 9 images, 3 videos, and 3 audio clips as references
Output specs:
Resolution: up to 2K / 1080p standard
Duration: up to 15 seconds (v2.5: 30 seconds native, 3 minutes in beta)
Aspect ratios: 16:9, 9:16, 1:1, and others
Native audio:
Lip-synced dialogue in 7+ languages
Sound effects and ambient audio
Background music
All generated in a single pass alongside video
Camera control:
Pan, tilt, zoom, orbit using standard cinematic terminology in prompts.
In-video editing:
Swap characters or objects without full regeneration. Useful for iterating on specific elements within an existing video.
Multi-shot storytelling:
Define timeline-based shot sequences for narrative content within a single generation.
Prompt Engineering Guide
The Seedance prompt formula
The recommended structure for Seedance prompts:
Shot count + duration + aspect ratio at top
Narrative overview
Numbered shot descriptions with:
Precise subject
Action details (range, speed, force)
Scene/environment
Lighting and color tone
Camera movement (one per shot)
Visual style
Image quality keywords
Constraints
Core tips
Specify one camera movement per shot. Multiple camera instructions confuse the model. Pick the single most important movement.
Break actions into timed segments. Instead of "a man walks and sits down," write: "0-3s: man walks toward camera. 3-5s: pulls out chair. 5-7s: sits down, leans forward."
Externalize emotions. Do not write "she is sad." Write "lowering head, shoulders trembling, eyes reddening." The model responds to physical descriptions, not abstract emotions.
Use the realism constraint. Add "no 3D, no cartoon, no VFX" to prompts when you want ultra-realistic output. This single constraint dramatically improves photorealism.
Use bracketed notation for VFX. Example: [VFX: branching electric circuits] tells the model to apply a specific visual effect.
Add constraint lines. "Keep it subtitle-free" or "do not generate a logo/watermark" prevents the model from inventing unwanted visual elements.
For comedy, specify background gags. Add "add a visual gag in the background" and the model will invent one that fits the scene.
Use @-syntax for multimodal references. Reference uploaded images and videos as @image1, @video1, @audio1 in your prompt.
Example prompts
Product commercial:
1 shot, 8 seconds, 16:9
A sleek wireless headphone floats in center frame against a dark gradient background.
Slow 360-degree orbit reveals brushed metal details.
As camera completes the rotation, warm golden light sweeps across the surface.
Text appears: "Pure Silence. Pure Sound."
Clean product photography style, soft reflections on glass surface below.
no 3D, no cartoon
Narrative dialogue:
2 shots, 10 seconds, 16:9
[0-5s] A barista in a coffee shop looks up as the door chimes. She smiles.
Use Seedance Fast for drafts and testing (available on Avocado at 16 credits/5s)
Use the Mini variant for lower-stakes content (10 credits/5s on Avocado)
BytePlus API Lite is the cheapest direct API option at $0.05 per 5-second clip
Switch to Pro mode only for final renders
Strengths and Trade-offs
Strengths
Multimodal reference input. Up to 12 mixed references (9 images, 3 video, 3 audio) via @-syntax. No other video model matches this capacity for character/product/style consistency.
Native audio with lip-sync. Single-pass audio generation including dialogue, SFX, ambient, and music. Lip-sync works well for commercial and social content.
Production-ready pipeline integration. BytePlus API, Dreamina, and multiple third-party platforms make Seedance the most widely available premium video model.
Camera control. Pan, tilt, zoom, orbit inputs give directors real control over framing rather than hoping the model guesses right.
In-video editing. The ability to swap objects or characters within an existing video without regenerating the entire clip saves time and credits.
Competitive pricing. BytePlus API Lite at $0.05/clip is among the cheapest premium video generation available.
Trade-offs
15-second cap per generation. Version 2.5 extends this to 30 seconds, but most platforms still serve v2.0.
Hands and fingers still distort without reference images. This is an industry-wide problem, but Seedance is notably sensitive to it.
"Plasticky" look when over-using style keywords. Use camera specifications and scene descriptions instead of stacking modifiers like "8K, hyperrealistic, cinematic."
Aggressive content moderation. Face-related prompts are often flagged. This limits some creative and portrait-focused use cases.
No LoRA or fine-tuning support. You cannot customize the model on your own datasets.
Unclear commercial licensing on ByteDance's native Dreamina/Jimeng platforms. If you need clear commercial rights, use a third-party API platform.
Steep learning curve. Rated 8.5/10 for professionals but 5/10 for casual users. The prompt formula requires practice.
How It Compares
vs. Happy Horse 1.1:
Seedance wins on production pipeline integration, pricing, prompt adherence, and multimodal reference input. Happy Horse wins on cinematic realism, physics simulation, and raw visual quality. For ad campaigns and e-commerce: Seedance. For cinematic exploration: Happy Horse.
vs. Sora 2:
Seedance is cheaper, more accessible, and has native audio. Sora offers longer clips, better narrative coherence, and a premium documentary feel. Seedance is the practical choice; Sora is the aspirational one.
vs. Kling 3.0:
Seedance has better motion control and multimodal input. Kling is more intuitive for some use cases and has competitive pricing. Seedance is better for professional pipelines; Kling is better for quick social content.
vs. Veo 3:
Seedance has multimodal references and broader platform availability. Veo 3 has Google ecosystem integration and strong audio capabilities. Seedance is the more flexible tool; Veo 3 is the more polished one.
FAQ
What is the difference between Seedance 2.0 Fast and Pro?
Fast generates at lower quality but faster speed and lower cost. Pro generates at maximum quality but costs more and takes longer. Use Fast for drafts and Pro for final renders.
Does Seedance 2.0 support 4K?
No. Maximum standard resolution is 2K/1080p. For 4K output, you would need to upscale separately.
Can I use Seedance commercially?
On third-party API platforms (BytePlus, fal.ai, Atlas Cloud, Avocado AI), commercial use is typically covered. Check each platform's terms. ByteDance's own Dreamina platform has less clear commercial licensing terms.
How many reference images can I use?
Seedance 2.0 supports up to 12 mixed references (9 images + 3 video clips + 3 audio clips). The upgraded v2.5 extends this to 50 references.
Does it generate audio?
Yes. Seedance 2.0 generates dialogue (with lip-sync), sound effects, ambient audio, and background music in a single pass alongside video.
Try Seedance 2.0 on Avocado AI alongside 20+ video and image models in one credit pool, from 10 credits per 5-second clip.
