Gemini 3.1 Pro Preview Customtools vs gpt-4o-image
| Google Gemini 3.1 Pro Preview Customtools | OpenAI gpt-4o-image | |
|---|---|---|
| Vendor | OpenAI | |
| Context window | 1,048,576 | — |
| Max output | 65,536 | — |
| Reasoning | Yes | No |
| Tool calling | Yes | No |
| File input | Yes | No |
| Input | text, image, video, audio, file | text |
| Output | text | image, text |
| Released | 2026-02-19 | — |