1 vs 0 benchmarks won
Anthropic Claude 3 Haiku | OpenAI GPT-5 mini | |
|---|---|---|
| Overview | ||
| Company | Anthropic | OpenAI |
| Release date | Mar 4 2024 | Aug 7 2025 |
| Model type | — | — |
| Open source | No | No |
| Specifications | ||
Parameters | — | — |
Context window | — | — |
| Benchmarks | ||
Science reasoning GPQA Diamond | 33.3% | — |
Software engineering SWE-Bench Verified | — | — |
Multimodal understanding MMMU | — | — |
| Timeline | ||
| Release gap | Claude 3 Haiku shipped 521 days before GPT-5 mini | |
Claude 3 Haiku leads GPT-5 mini on 1 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Claude 3 Haiku shipped 521 days before GPT-5 mini, 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.
Direct benchmark comparisons are unavailable — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.