Claude Opus 4.5 vs Gemini 3 Flash Preview
| Anthropic Claude Claude Opus 4.5 | Google Gemini 3 Flash Preview | |
|---|---|---|
| Vendor | Anthropic Claude | |
| Context window | 200,000 | 1,048,576 |
| Max output | 64,000 | 65,536 |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| File input | Yes | Yes |
| Input | text, image, file | text, image, video, audio, file |
| Output | text | text |
| Released | 2025-11-24 | 2025-12-17 |