GPT Image 2.5 Dev vs Gemini Omni Flash Preview
| OpenAI GPT Image 2.5 Dev | Google Gemini Omni Flash Preview | |
|---|---|---|
| Vendor | OpenAI | |
| Context window | — | 65,536 |
| Max output | — | 32,768 |
| Reasoning | No | Yes |
| Tool calling | No | No |
| File input | Yes | Yes |
| Input | text, image | text, image |
| Output | image | video |
| Released | 2026-09-08 | 2026-06-30 |