Gemini 3 Pro Preview vs Claude Sonnet 4.5
| Google Gemini 3 Pro Preview | Anthropic Claude Claude Sonnet 4.5 | |
|---|---|---|
| Vendor | Anthropic Claude | |
| Context window | 1,000,000 | 200,000 |
| Max output | 64,000 | 64,000 |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| File input | Yes | Yes |
| Input | text, image, video, audio, file | text, image, file |
| Output | text | text |
| Released | 2025-11-18 | 2025-09-29 |