Claude Sonnet 4.5 strikes a balance between thoughtful reasoning and practical responsiveness — it engages carefully with nuanced questions without the slower deliberation of heavier models. It handles complex writing, analysis, and coding tasks with consistent quality, and tends to be direct while still acknowledging ambiguity when it exists. A reliable mid-tier workhorse that doesn't sacrifice depth for speed.
| Benchmark | Score | Type | Recorded |
|---|---|---|---|
| LCR | 66.0 | pass@1_accuracy | 5d ago |