BytePlus Seedance 2.0 text-to-video. Describe a short scene and receive an MP4 clip with natural motion, camera work, and audio. The control panel offers an aspect-ratio selector with 7 options: 16:9 (landscape, YouTube), 9:16 (portrait, IG Reels / TikTok), 1:1 (square, IG posts), 4:3, 3:4, 21:9 (ultrawide cinematic), and 9:21 — pick by target platform. Upload a first-frame image to set the opening shot; the AI extends motion from there. Upload a last-frame image to set the ending shot; the AI wraps the clip on that image. Upload multiple keyframe images to chain scenes in order — the video traverses them sequentially, ideal for story-driven shorts with multiple scene changes. Strong at Chinese cultural scenes and Asian character animations. Use it for social-media content, product demos, educational shorts, or concept videos. Usage: 1. Prompt only, no file uploads. 2. Prompt + first-frame image. 3. Prompt + first-frame and last-frame images. 4. Prompt + keyframe images (label filenames: first-frame, keyframe-1, keyframe-2, ..., keyframe-n, last-frame). Do not upload first-frame, last-frame, and keyframe images at the same time. Use Simplified Chinese prompts for better results. Generated videos are 15 seconds long at 720P; the aspect ratio follows the control-panel selection (default 16:9). Maximum total upload size per request: 256MB (all files and message content combined). Accepted image formats: bmp, gif, heic, heif, jpeg, jpg, png, tif, tiff, webp. Maximum number of images: 9. Maximum size per image: 30MB. Image dimensions: 301 to 5,999 pixels per side. Image aspect ratio: 0.4 to 2.5. Accepted video formats: mov, mp4. Maximum number of videos: 3. Maximum size per video: 200MB. Video duration: 2 to 15 seconds (total at most 15 seconds). Video dimensions: 300 to 6,000 pixels per side. Video resolution: 409,600 to 8,295,044 pixels in total. Video aspect ratio: 0.4 to 2.5. Video frame rate: 24 to 60 fps. Accepted audio formats: mp3, wav. Maximum number of audio files: 3. Maximum size per audio file: 15MB. Audio duration: 2 to 15 seconds (total at most 15 seconds). Output content formats: Video Video output: one 15-second 720P MP4 video; the aspect ratio follows the panel selection. This module does not support continuous conversations. AI can make mistakes. Please verify important information.