Seedance AI 影片模型
ByteDance’s flagship cinema-grade video model — best-in-class motion realism for ads, product demos and short-form content.
Seedance 是什麼？
Seedance is the video-generation flagship from ByteDance, the same AI lab that powers TikTok’s recommendation graph and Douyin’s creator tools. It was built to do one thing better than any other public model: render plausible, physically-coherent motion at 1080p without the warping, melting and identity-drift that plagues most diffusion video systems.
Where most models give you a moving image, Seedance gives you a shot. Cameras pan with parallax. Subjects keep their faces across cuts. Liquids flow, fabric drapes, hair catches light. That’s why performance ad teams, product marketers and short-form creators on ZNIX.ai pick Seedance first when the brief says “cinematic”, “high-fidelity” or “client-ready in one render”.
Seedance ships in two generations on ZNIX: Seedance 2.0 (the current flagship, 1080p / up to 10s, both T2V and I2V) and Seedance 1.5 (faster, lower-credit, ideal for batch testing).
Seedance 功能特點
Cinematic motion realism
Best-in-class subject coherence — faces, hands and product shapes survive across the full 10-second window.
1080p native render
No upscale-from-720p tricks. Crops cleanly to TikTok 9:16 and YouTube 16:9 without re-render.
Text-to-Video and Image-to-Video
Same family, two modes. Pin a product photo (I2V) or write a prompt (T2V); identity is preserved.
Strong prompt adherence
Reads camera language (“tracking shot”, “dolly in”, “close-up”) and scene composition without prompt-engineering tricks.
Up to 10-second clips
Long enough for a full TikTok hook, B-roll loop or a complete product reveal beat.
Seedance 費用多少？
按次渲染付費，以積分計費。註冊即送免費積分。含完整商用授權。
| 場景 | 積分 | 美元估算 |
|---|---|---|
| Seedance 2.0 · T2V · 5s · 1080p | 100 | ~$1.00 |
| Seedance 2.0 · T2V · 10s · 1080p | 200 | ~$2.00 |
| Seedance 2.0 · I2V · 5s · 1080p | 120 | ~$1.20 |
| Seedance 1.5 · T2V · 5s · 720p | 60 | ~$0.60 |
美元估算基於 $0.01 / 積分基準。訂閱計畫可進一步降低價格——詳見價格頁面。
Seedance 最佳使用場景
Performance ad teams
Render hero ad shots that pass platform review on the first take. Subject coherence means no “melted hand” retakes when scaling spend.
Product marketing
Turn a single product photo into a 10-second demo loop for Amazon, Shopify and TikTok Shop. I2V keeps the SKU on-model.
Short-form creators
Hook-friendly 1080p 9:16 output that survives TikTok and Reels compression without looking AI-warped.
Brand & creative agencies
Pitch decks, mood reels and storyboards that look client-ready, not stock-AI. Camera language in the prompt is honored.
Seedance 範例提示詞
經過驗證的模式，在該模型上始終能產出優質渲染。
Slow tracking shot, eye-level, of a barista pouring oat milk into espresso, soft window light, 35mm, shallow depth of field, 1080p.
為何有效： Triggers Seedance’s strongest mode: real-world hand-prop interaction with named camera language.
[product photo] Camera dollies in slowly to reveal the bottle on a wet matte black surface, neon-pink rim light, drops cascading down the label.
為何有效： I2V locks the bottle silhouette while letting the lighting and water motion do the work.
Aerial top-down of a mid-pour latte art rosette completing in real time, ultra-shallow DOF, 1080p cinematic.
為何有效： Seedance handles fluid motion + macro framing better than text-only models like Vidu.
如何用 Seedance 獲得優質輸出
- 01
Pick T2V or I2V
Have a product photo? Use I2V — Seedance preserves identity. Starting from a brief? T2V handles camera language well.
- 02
Write a director-style prompt
Lead with shot type (“slow dolly in”, “tracking close-up”), then subject + lighting + lens. 25–40 words is the sweet spot.
- 03
Pin duration to your platform
5s for ads / hooks, 10s for full demo beats. Longer ≠ better; pacing wins.
- 04
Render and download
~30–60 seconds per render. Output is a 1080p MP4 with full commercial license — drop it straight into your ad.
何時不選 Seedance
誠實對比，幫你將需求匹配到正確的模型。
- Hyper-stylized anime — use Vidu Q2 or Pika.
- Long-form (30s+) narrative videos — chain shorter renders or use MiniMax Hailuo.
- Pure text/typography animation — use a motion-graphics tool like Cavalry or After Effects.
Seedance — 常見問題
Is Seedance better than Sora?+
Sora is not publicly available for production use; Seedance is. Among public models, Seedance leads on subject coherence and product fidelity, especially in the I2V mode where Sora has no widely-shipped equivalent.
Can I use Seedance output commercially?+
Yes. Every render on ZNIX ships with a full commercial license including paid ads, e-commerce listings and client work. No watermark, no attribution required.
How long does one render take?+
5-second clips render in 30–45 seconds; 10-second clips in 60–90 seconds depending on queue load.
Does Seedance support 4K?+
Native render is 1080p. For 4K you can pipe the output through ZNIX’s AI Image Upscaler for video frames, or use the Wan 2.6 model which renders at 1080p but upscales cleaner due to lower temporal noise.
What’s the difference between Seedance 2.0 and 1.5?+
2.0 is the current flagship — better motion, better prompt adherence, 1080p default, ~100 credits/5s. 1.5 is the lighter, faster sibling — 720p default, 60 credits/5s, great for batch ideation before committing to a hero render.
Why does my output sometimes drift in the last 2 seconds?+
Diffusion video models lose temporal anchor over time. Two fixes: render two 5s clips and crossfade in your editor, or use I2V to lock the opening frame and limit drift to 10–15%.
與其他模型對比
Kuaishou’s Kling — fast, accessible video generation with separate T2V and I2V variants and excellent motion fluidity.
MiniMax’s Hailuo line — long-form coherent video with strong prompt adherence, ideal for narrative shorts and explainers.
Alibaba’s Wan — versatile open-source video model with three variants (T2V, I2V, Keyframe) for full creative control.
Vidu Q2 — high-fidelity video model from Shengshu, strong on stylized aesthetics and creative direction.