Compare / GPT-6 Sol vs grok-4-fast-reasoning
GPT-6 Sol vs grok-4-fast-reasoning
12 results from 3 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | GPT-6 Sol | grok-4-fast-reasoning |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,424 | 1,417 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,465 | 1,403 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,451 | 1,383 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,507 | 1,421 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,447 | 1,389 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,457 | 1,405 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,440 | 1,388 |
| Artificial Analysisreported | Artificial Analysis Intelligence Indexindex score | 47.6 | 17.9 |
| Artificial Analysisreported | Humanity's Last Exam% of questions | 47.9% | 19.1% |
| Artificial Analysisreported | Long-context reasoning (AA-LCR)% of questions | 83.7% | 73.7% |
| Vectara Hallucination Leaderboardreported | Answer rate% of documents | 100.0% | 99.5% |
| Vectara Hallucination Leaderboardreported | Hallucination rate% of summaries | 6.5% | 20.2% |
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.