Compare / grok-4-fast-reasoning vs GLM 4.7 Flash
grok-4-fast-reasoning vs GLM 4.7 Flash
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 | grok-4-fast-reasoning | GLM 4.7 Flash |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,417 | 1,370 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,403 | 1,368 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,383 | 1,306 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,421 | 1,386 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,389 | 1,348 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,405 | 1,365 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,388 | 1,331 |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 23.0% | 39.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.33 | 0.37 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 53.4 | 25.0 |
| Vectara Hallucination Leaderboardreported | Answer rate% of documents | 99.5% | 91.6% |
| Vectara Hallucination Leaderboardreported | Hallucination rate% of summaries | 20.2% | 9.3% |
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.