2 vs 1 benchmarks won
Anthropic Claude Sonnet 4.6 | Google Gemini 2.5 Pro | |
|---|---|---|
| Overview | ||
| Company | Anthropic | |
| Release date | Feb 17 2026 | Mar 25 2025 |
| Model type | — | — |
| Open source | No | No |
| Specifications | ||
Parameters | — | — |
Context window | — | — |
| Benchmarks | ||
Science reasoning GPQA Diamond | 89.9% | 86.4% |
Software engineering SWE-Bench Verified | 79.6% | 59.6% |
Multimodal understanding MMMU | — | 68% |
| Timeline | ||
| Release gap | Gemini 2.5 Pro shipped 329 days before Claude Sonnet 4.6 | |
Claude Sonnet 4.6 leads Gemini 2.5 Pro on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Gemini 2.5 Pro shipped 329 days before Claude Sonnet 4.6, 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 Sonnet 4.6 scores 89.9%, 3.5 points above Gemini 2.5 Pro at 86.4%. On SWE-Bench Verified, Claude Sonnet 4.6 scores 79.6%, 20 points above Gemini 2.5 Pro at 59.6%.