gpt-4-turbo-preview vs Gemini 3.1 Pro Preview Customtools
| OpenAI gpt-4-turbo-preview | Google Gemini 3.1 Pro Preview Customtools | |
|---|---|---|
| Vendor | OpenAI | |
| Context window | 128,000 | 1,048,576 |
| Max output | 4,096 | 65,536 |
| Reasoning | No | Yes |
| Tool calling | Yes | Yes |
| File input | No | Yes |
| Input | text | text, image, video, audio, file |
| Output | text | text |
| Released | — | 2026-02-19 |