GPT-5.4 Nano vs Gemini Omni Flash Preview
| OpenAI GPT-5.4 Nano | Google Gemini Omni Flash Preview | |
|---|---|---|
| Vendor | OpenAI | |
| Context window | 400,000 | 65,536 |
| Max output | 128,000 | 32,768 |
| Reasoning | Yes | Yes |
| Tool calling | Yes | No |
| File input | Yes | Yes |
| Input | text, image | text, image |
| Output | text | video |
| Released | 2026-03-17 | 2026-06-30 |