Seedance 2.0 Fast
ByteDance's speed-optimized AI video model — generates 4–15s clips at 720p with native audio, multimodal inputs, and professional motion, prioritizing fast turnaround and lower cost over peak fidelity.
curl https://api.venice.ai/api/v1/video/queue \
-H "Authorization: Bearer $VENICE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "seedance-2-0-fast-text-to-video-basic",
"prompt": "Aerial drone shot over a misty mountain valley at golden hour"
}'
# Use the returned queue_id with https://api.venice.ai/api/v1/video/retrieve.
# Call /video/complete after downloading if needed.Overview
What is Seedance 2.0 Fast
Seedance 2.0 Fast is ByteDance's speed-optimized AI video model, released April 14, 2026, as a faster, lower-cost variant of Seedance 2.0. It generates 4–15 second clips at 720p or 480p with synchronized audio from text, image, or reference inputs, trading minor visual fidelity for efficiency in high-volume or iterative workflows.
Using it anonymously on Venice
On Venice, Seedance 2.0 Fast runs with anonymized privacy — your prompts are not stored, profiled, or used for training. This enables permissionless, uncensored video generation for social content, prototyping, and A/B testing without leaving a trace. You retain sovereignty over your creative direction while benefiting from Venice’s zero-retention infrastructure.
Specifications
Datasheet
- Maker
- ByteDance
- Modality
- Text-to-video, image-to-video, reference-to-video
- Open weights
- No — proprietary
- License
- Proprietary
- Clip lengths
- 4s – 15s
- Resolutions
- 720p, 480p
- Mode
- text-to-video
- Audio
- Yes
- Prompt limit
- 3,500 chars
- References
- Up to 9 images, 3 video clips, and 3 audio files
- Released
- April 14, 2026
- Aspect ratios
- 21:9, 16:9, 4:3, 1:1, 3:4, 9:16
- Privacy on Venice
- Anonymized — prompts not stored
- Available on Venice since
- Apr 2026
Assessment
Strengths and limitations
- Fast generation with lower cost: ideal for iterative workflows, A/B testing, and high-volume content pipelines.
- Supports multimodal inputs: text, images, videos, and audio references for precise scene control.
- Native synchronized audio generation in multiple languages within the same API call.
- Professional camera movements, multi-shot sequences, and physics-aware motion for cinematic quality.
- Available in three input modes: text-to-video, image-to-video, and reference-to-video — for flexible creative control.
- Max resolution capped at 720p: no 1080p or 4K output unlike some rivals.
- Proprietary and closed: no open weights, so self-hosting or fine-tuning is not possible.
- Slightly lower visual fidelity compared to the full Seedance 2.0, especially in fine textures and lighting.
- No TEE or end-to-end encryption on Venice: privacy is anonymized but not hardware-enforced.
Use cases
What it is good for
- 01Rapid prototyping of social media clips, ads, and reels with fast turnaround.
- 02Animating still product images into short promotional videos.
- 03Maintaining character or object consistency across clips using reference assets.
- 04Generating multilingual video content with synchronized voice and effects.
- 05Iterative creative workflows where cost and speed matter more than peak resolution.
Prompting
Getting better results
Use double quotes for dialogue to trigger native audio generation.
Reference inputs as [Image1], [Video1], [Audio1] in your prompt for precise control.
Set duration to -1 to let the model choose the optimal clip length.
Specify camera movements, lighting, and mood explicitly for better direction.
Use adaptive aspect ratio to let the model pick the best fit for your inputs.
Start with 480p for fast, low-cost drafts, then upgrade to 720p for final output.
Samples
Sample outputs
Generated on Venice with our standard prompt suite — the same prompts we run through every model of this type, so you can judge it like-for-like.
A slow tracking shot through a rain-soaked Tokyo street at night, neon reflecting in puddles, steam rising from a food cart, a person with a translucent umbrella, shallow depth of field, teal-and-orange grade, smooth steady camera
Alternatives
How it compares
| Model | Best for | Max duration | Max resolution | Native audio |
|---|---|---|---|---|
| Seedance 2.0 Fast | Speed & cost efficiency | 15s | 720p | Yes |
| Grok Imagine 1.5 | High fidelity & realism | 15s | 1080p | Yes |
| Wan 2.7 Enhanced | Open weights & customization | 15s | 1080p | Yes |
| Vidu Q3 | Longest native duration | 16s | 1080p | Yes |
Choose Seedance 2.0 Fast when speed, cost, and multimodal input control matter more than 1080p resolution — ideal for social content, rapid prototyping, and reference-based animation.
API
Call it from your code
Venice exposes this model through the REST API. Queue a generation with the model id.
curl https://api.venice.ai/api/v1/video/queue \
-H "Authorization: Bearer $VENICE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "seedance-2-0-fast-text-to-video-basic",
"prompt": "Aerial drone shot over a misty mountain valley at golden hour"
}'
# Use the returned queue_id with https://api.venice.ai/api/v1/video/retrieve.
# Call /video/complete after downloading if needed.Pricing
What it costs on Venice
Pay per clip on Venice — price scales with resolution and duration (4s–15s), from $0.28.
New Venice accounts include a free daily allowance and 500 welcome credits — no credit card required.
FAQ
Frequently asked questions
Seedance 2.0 Fast is ByteDance's speed-optimized AI video model, released April 14, 2026. It generates 4–15 second clips at 720p or 480p with native audio from text, image, or reference inputs, prioritizing fast turnaround and lower cost over peak visual fidelity.
On Venice, pricing starts at $0.28 per clip — $0.28 for 480p at 4 seconds, $0.60 for 720p at 4 seconds. Cost scales with resolution and duration up to 15 seconds.
No. Seedance 2.0 Fast is a proprietary model by ByteDance — not open source and not free. It cannot be self-hosted or fine-tuned. On Venice, you pay per clip with no subscription required.
Yes. The variant 'seedance-2-0-fast-image-to-video-basic' supports animating a still image into motion, with options to specify both first and last frames for controlled transitions.
Seedance 2.0 Fast supports 720p and 480p at aspect ratios including 16:9, 9:16, 1:1, 4:3, 3:4, and 21:9. It does not support 1080p or 4K.
Yes. It generates synchronized audio — including dialogue, sound effects, and background music — natively within the same API call. Place spoken lines in double quotes in your prompt to trigger voice output.
Seedance 2.0 Fast is faster and cheaper with strong multimodal input support, but capped at 720p. Wan 2.7 Enhanced offers 1080p and open weights for customization, making it better for high-fidelity or self-hosted use. Choose based on resolution needs and openness.
Yes. The 'reference-to-video' variant accepts up to 3 reference video clips (max 15 seconds total) to maintain subject consistency or guide motion, alongside images and audio references.
No. Seedance 2.0 Fast does not support tool use, function calling, or web search. It is a pure generative video model focused on multimodal input synthesis, not reasoning or external actions.
Use Seedance 2.0 Fast anonymously
Venice does not store your prompts. Chat history stays in your browser.