Compare / Claude Opus 4.5 vs Kimi K3
Claude Opus 4.5 vs Kimi K3
15 results from 5 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Claude Opus 4.5 | Kimi K3 |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,459 | 1,472 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,472 | 1,489 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,469 | 1,458 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,503 | 1,533 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,483 | 1,486 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,474 | 1,488 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,467 | 1,475 |
| Artificial Analysisreported | Artificial Analysis Intelligence Indexindex score | 29.1 | 43.6 |
| Artificial Analysisreported | GPQA Diamond% of questions | 86.6% | 93.5% |
| Artificial Analysisreported | Humanity's Last Exam% of questions | 30.1% | 46.9% |
| Artificial Analysisreported | Long-context reasoning (AA-LCR)% of questions | 77.3% | 88.7% |
| SimpleQA Verified (Epoch AI)reported | Correct answers% of questions | 45.7% | 50.6% |
| tau2-benchreported | Consistency (pass^4)% of tasks | 11.3% | 17.5% |
| tau2-benchreported | Task success (pass^1)% of tasks | 24.7% | 37.1% |
| Vending-Bench 2reported | Money after a yearUS dollars | $4,967.06 | $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.