GPT Image 2.5 Dev vs Seedance 2.5
| OpenAI GPT Image 2.5 Dev | ByteDance Seedance 2.5 | |
|---|---|---|
| Vendor | OpenAI | ByteDance |
| Context window | — | — |
| Max output | — | — |
| Reasoning | No | No |
| Tool calling | No | No |
| File input | Yes | Yes |
| Input | text, image | text, image, video, audio |
| Output | image | video |
| Released | 2026-09-08 | 2026-07-31 |