Seedance 2.0 Fast vs GPT Image 2 Develop
| ByteDance Seedance 2.0 Fast | OpenAI GPT Image 2 Develop | |
|---|---|---|
| Vendor | ByteDance | OpenAI |
| Context window | — | 128,000 |
| Max output | — | — |
| Reasoning | No | No |
| Tool calling | No | No |
| File input | Yes | Yes |
| Input | text, image, audio, video | text, image |
| Output | video | image |
| Released | 2026-01-27 | 2026-04-19 |