DeepSeek V4.1 Flash vs Seedance 2.0 Fast
| DeepSeek DeepSeek V4.1 Flash | ByteDance Seedance 2.0 Fast | |
|---|---|---|
| Vendor | DeepSeek | ByteDance |
| Context window | 1,040,000 | — |
| Max output | 384,000 | — |
| Reasoning | Yes | No |
| Tool calling | Yes | No |
| File input | Yes | Yes |
| Input | text | text, image, video, audio |
| Output | text | video |
| Released | 2026-09-09 | 2026-02-12 |