Claude Sonnet 4.5 vs Claude Haiku 5.5
| Anthropic Claude Claude Sonnet 4.5 | Anthropic Claude Claude Haiku 5.5 | |
|---|---|---|
| Vendor | Anthropic Claude | Anthropic Claude |
| Context window | 200,000 | 1,000,000 |
| Max output | 64,000 | 128,000 |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| File input | Yes | Yes |
| Input | text, image, file | text, image, file |
| Output | text | text |
| Released | 2025-09-29 | 2026-10-07 |