Compare / Kimi K3 vs GPT-5.1
Kimi K3 vs GPT-5.1
16 results from 4 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Kimi K3 | GPT-5.1 |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,472 | 1,459 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,489 | 1,448 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,458 | 1,428 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,533 | 1,482 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,486 | 1,450 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,488 | 1,456 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,475 | 1,437 |
| Artificial Analysisreported | Artificial Analysis Coding Indexindex score | 76.2 | 49.4 |
| Artificial Analysisreported | Artificial Analysis Intelligence Indexindex score | 43.6 | 24.7 |
| Artificial Analysisreported | GPQA Diamond% of questions | 93.5% | 87.3% |
| Artificial Analysisreported | Humanity's Last Exam% of questions | 46.9% | 28.5% |
| Artificial Analysisreported | Long-context reasoning (AA-LCR)% of questions | 88.7% | 80.0% |
| Artificial Analysisreported | Terminal-Bench 2.1% of tasks | 85.0% | 52.4% |
| Artificial Analysisreported | Τ-bench banking% of tasks | 46.0% | 15.9% |
| SimpleQA Verified (Epoch AI)reported | Correct answers% of questions | 50.6% | 48.0% |
| Vending-Bench 2reported | Money after a yearUS dollars | $5,165.03 | $1,473.43 |
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.