Compare / Claude Sonnet 4.5 vs GPT-6 Sol
Claude Sonnet 4.5 vs GPT-6 Sol
16 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 Sonnet 4.5 | GPT-6 Sol |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,449 | 1,424 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,461 | 1,465 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,454 | 1,451 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,498 | 1,507 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,464 | 1,447 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,457 | 1,457 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,454 | 1,440 |
| Artificial Analysisreported | Artificial Analysis Intelligence Indexindex score | 20.7 | 47.6 |
| Artificial Analysisreported | Humanity's Last Exam% of questions | 17.8% | 47.9% |
| Artificial Analysisreported | Long-context reasoning (AA-LCR)% of questions | 72.3% | 83.7% |
| Artificial Analysisreported | SciCode% of problems | 45.7% | 57.6% |
| Artificial Analysisreported | Terminal-Bench 4.0% of tasks | 0.0% | 43.9% |
| SimpleQA Verified (Epoch AI)reported | Correct answers% of questions | 30.7% | 60.7% |
| Vectara Hallucination Leaderboardreported | Answer rate% of documents | 95.6% | 100.0% |
| Vectara Hallucination Leaderboardreported | Hallucination rate% of summaries | 12.0% | 6.5% |
| Vending-Bench 2reported | Money after a yearUS dollars | $3,838.74 | $14,427.85 |
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.