1 vs 1 benchmarks won
Anthropic Claude Haiku 4.5 | DeepSeek DeepSeek-V4-Pro | |
|---|---|---|
| Overview | ||
| Company | Anthropic | DeepSeek |
| Release date | Oct 15 2025 | Apr 24 2026 |
| Model type | — | — |
| Open source | No | Yes |
| Specifications | ||
Parameters | — | — |
Context window | — | — |
| Benchmarks | ||
Science reasoning GPQA Diamond | 73% | 90.1% |
Software engineering SWE-Bench Verified | 73.3% | — |
Multimodal understanding MMMU | — | — |
| Timeline | ||
| Release gap | Claude Haiku 4.5 shipped 191 days before DeepSeek-V4-Pro | |
Claude Haiku 4.5 and DeepSeek-V4-Pro are evenly matched across the benchmarks they both publish. Claude Haiku 4.5 shipped 191 days before DeepSeek-V4-Pro, so benchmark comparisons should account for the intervening progress.
DeepSeek-V4-Pro is an open-source / open-weight model; Claude Haiku 4.5 is proprietary.
On GPQA Diamond, DeepSeek-V4-Pro scores 90.1%, 17.1 points above Claude Haiku 4.5 at 73%.