1 vs 2 benchmarks won
Anthropic Claude Haiku 4.5 | Google Gemini 2.5 Pro | |
|---|---|---|
| Overview | ||
| Company | Anthropic | |
| Release date | Oct 15 2025 | Mar 25 2025 |
| Model type | — | — |
| Open source | No | No |
| Specifications | ||
Parameters | — | — |
Context window | — | — |
| Benchmarks | ||
Science reasoning GPQA Diamond | 73% | 86.4% |
Software engineering SWE-Bench Verified | 73.3% | 59.6% |
Multimodal understanding MMMU | — | 68% |
| Timeline | ||
| Release gap | Gemini 2.5 Pro shipped 204 days before Claude Haiku 4.5 | |
Gemini 2.5 Pro leads Claude Haiku 4.5 on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Gemini 2.5 Pro shipped 204 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, Gemini 2.5 Pro scores 86.4%, 13.4 points above Claude Haiku 4.5 at 73%. On SWE-Bench Verified, Claude Haiku 4.5 scores 73.3%, 13.7 points above Gemini 2.5 Pro at 59.6%.