Seedance 2.5 Reference to Video Model, Full‑Power Version, comes with a material library, no facial distortion, 100% real‑human pass rate, long‑term stability. Priced at approximately 90% of the official rate.

Material and Scene Limitations

1. Text Prompts: Chinese text is recommended to be no more than 500 characters; English text is recommended to be no more than 1000 words.
2. Image Input: Supports jpeg, png, webp, bmp, tiff, gif, heic, heif; single‑image size below 30 MB, aspect ratio (0.4, 2.5), width and height range (300px, 6000px).
3. Image Count: No more than 30 images.
4. Video Input: Single‑video duration [2, 30] s; up to 10 reference videos allowed; total duration of all videos shall not exceed 30 s.
5. Audio Input: Single‑audio duration [2, 30] s; up to 10 reference audio clips allowed; total duration of all audio clips shall not exceed 30 s.
6. Audio cannot be input independently; at least one reference image or video shall be provided simultaneously.

🔸Note🔸: Unit price for with‑video input is lower due to different calculation formulas: No video = Unit Price × Output Volume; With video = Unit Price × (Input Volume + Output Volume).