Doubao-Seedream-4.5 vs Seedance 2.0 Fast
| ByteDance Doubao-Seedream-4.5 | ByteDance Seedance 2.0 Fast | |
|---|---|---|
| Vendor | ByteDance | ByteDance |
| Context window | — | — |
| Max output | — | — |
| Reasoning | No | No |
| Tool calling | No | No |
| File input | Yes | Yes |
| Input | text, image | text, image, audio, video |
| Output | image | video |
| Released | 2025-12-02 | 2026-01-27 |