Compare / Claude Sonnet 4.5 vs Kimi K3
Claude Sonnet 4.5 vs Kimi K3
18 results from 4 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Claude Sonnet 4.5 | Kimi K3 |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,449 | 1,472 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,461 | 1,489 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,454 | 1,458 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,498 | 1,533 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,464 | 1,486 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,457 | 1,488 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,454 | 1,475 |
| Artificial Analysisreported | Artificial Analysis Coding Indexindex score | 52.1 | 76.2 |
| Artificial Analysisreported | Artificial Analysis Intelligence Indexindex score | 20.7 | 43.6 |
| Artificial Analysisreported | GPQA Diamond% of questions | 83.4% | 93.5% |
| Artificial Analysisreported | Humanity's Last Exam% of questions | 17.8% | 46.9% |
| Artificial Analysisreported | Long-context reasoning (AA-LCR)% of questions | 72.3% | 88.7% |
| Artificial Analysisreported | SciCode% of problems | 45.7% | 59.5% |
| Artificial Analysisreported | Terminal-Bench 2.1% of tasks | 55.8% | 85.0% |
| Artificial Analysisreported | Terminal-Bench 4.0% of tasks | 0.0% | 12.6% |
| Artificial Analysisreported | Τ-bench banking% of tasks | 24.5% | 46.0% |
| SimpleQA Verified (Epoch AI)reported | Correct answers% of questions | 30.7% | 50.6% |
| Vending-Bench 2reported | Money after a yearUS dollars | $3,838.74 | $5,165.03 |
Bold green marks the better value on that metric. Where a source reports ranges that overlap, the difference may not be meaningful; see the benchmark page for ranges.