0 vs 2 benchmarks won
Anthropic Claude 3.7 Sonnet | Anthropic Claude Haiku 4.5 | |
|---|---|---|
| Overview | ||
| Company | Anthropic | Anthropic |
| Release date | Feb 24 2025 | Oct 15 2025 |
| Model type | — | — |
| Open source | No | No |
| Specifications | ||
Parameters | — | — |
Context window | — | — |
| Benchmarks | ||
Science reasoning GPQA Diamond | 68% | 73% |
Software engineering SWE-Bench Verified | 62.3% | 73.3% |
Multimodal understanding MMMU | — | — |
| Timeline | ||
| Release gap | Claude 3.7 Sonnet shipped 233 days before Claude Haiku 4.5 | |
Claude Haiku 4.5 leads Claude 3.7 Sonnet on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Claude 3.7 Sonnet shipped 233 days before Claude Haiku 4.5, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
On GPQA Diamond, Claude Haiku 4.5 scores 73%, 5 points above Claude 3.7 Sonnet at 68%. On SWE-Bench Verified, Claude Haiku 4.5 scores 73.3%, 11 points above Claude 3.7 Sonnet at 62.3%.