# Seedance 2.0 Fast ByteDance's Seedance 2.0 Fast: the same features as 2.0 for less, at up to 720p. Last updated: 2026-10-05 **Key facts** - Seedance 2.0 Fast is ByteDance's speed- and cost-optimised version of Seedance 2.0, with the same features and prompting. - Seedance 2.0 Fast makes 480p or 720p video in Sloosh, at any whole length from 4 to 15 seconds. - Seedance 2.0 Fast takes up to 9 reference images and 3 reference videos in Sloosh, the same limits as Seedance 2.0. - Seedance 2.0 Fast makes sound by default and accepts prompts of up to 30,000 characters. Web page: https://sloosh.ai/docs/seedance-2-0-fast Seedance 2.0 Fast has the same features and prompting as Seedance 2.0, traded for speed and cost. It makes 480p or 720p. ## When to use it - Drafts: settle the prompt and references cheaply, then make the final on [Seedance 2.0](https://sloosh.ai/docs/seedance-2-0.md) or [2.5](https://sloosh.ai/docs/seedance-2-5.md). - Social clips where 720p is enough. ## How to prompt it - Prompt it exactly like [Seedance 2.0](https://sloosh.ai/docs/seedance-2-0.md): references first, then `Shot 1`, `Shot 2`, `Shot 3`. - Sound effects in angle brackets, music in brackets, dialogue in curly brackets. - End with "No subtitles, no logo, no watermark." ## Example One product reference and three shots in a night street. Input: product photo: ![A white mesh running sneaker with sage-green panels and a thick white sole, side view on light grey](https://sloosh.ai/docs/in-sneaker.webp) -> Result: [![The sneaker landing in a puddle on a neon-lit wet street at night](https://sloosh.ai/docs/m-seedance-2-0-fast.webp)](https://sloosh.ai/docs/m-seedance-2-0-fast.mp4) (video) _16:9, 720p, 8 seconds, sound on, Enhance off. Clips here play without sound; press one to pause._ **Prompt** ```text Refer to the sneaker in Image 1. Shot 1: The sneaker drops onto a wet city pavement at night in slow motion; neon reflections ripple. Shot 2: Low tracking shot beside the sneaker as it rests in the puddle; the camera glides past the sole. Shot 3: Close-up of the sole lit by a passing car's headlights. Cinematic, cool blue and magenta tones. No subtitles, no logo, no watermark. ``` ## Settings in Sloosh - Aspect ratio: Auto, 21:9, 16:9, 4:3, 1:1, 3:4 or 9:16. - Resolution: 480p or 720p. - Length: 4 to 15 seconds. - References: up to 9 images and 3 videos (each 2 to 15 seconds). - Start and end frames: both optional. - A start or end frame can't be combined with reference images. - Sound: on by default; you can turn it off, which can change the price. - Prompt: up to 30,000 characters. Open it in [Video](https://sloosh.ai/studio/video) and pick Seedance 2.0 Fast in the model chip. The Generate button shows the cost first. ## Frequently asked questions ### Seedance 2.0 vs Seedance 2.0 Fast: what's the difference? BytePlus says the two Seedance 2.0 models support largely the same features and differ mainly in the trade-off between quality and cost. In Sloosh, Seedance 2.0 Fast stops at 720p and allows any length from 4 to 15 seconds, while Seedance 2.0 reaches 1080p or 4K at 4, 6, 8, 10, 12 or 15 seconds. ### Is Seedance 2.0 Fast good for drafts? Yes. Seedance 2.0 Fast prompts exactly like Seedance 2.0, so you can settle the prompt and references on Fast, then make the final on [Seedance 2.0](https://sloosh.ai/docs/seedance-2-0.md) or [Seedance 2.5](https://sloosh.ai/docs/seedance-2-5.md). The Generate button shows the cost of each before you run it. ### Can Seedance 2.0 Fast make 1080p video? No. Seedance 2.0 Fast offers only 480p and 720p, in Sloosh and in BytePlus's own model table. For 1080p use Seedance 2.0 or Seedance 2.5, and for 4K use Seedance 2.0. ### Can I turn off sound in Seedance 2.0 Fast? Yes. Seedance 2.0 Fast makes sound by default in Sloosh, and you can switch it off with the speaker switch in the chip row. Turning sound off can change the price, which the Generate button shows. ## Sources - [BytePlus: Seedance 2.0 tutorial](https://docs.byteplus.com/en/docs/modelark/seedance-2-0) - [BytePlus: Seedance 2.0 prompt guide](https://docs.byteplus.com/en/docs/modelark/seedance-2-0-prompt-guide)