Compare / GPT-5.1 vs GLM 5.1
GPT-5.1 vs GLM 5.1
22 results from 5 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | GPT-5.1 | GLM 5.1 |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,459 | 1,456 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,448 | 1,465 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,428 | 1,448 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,482 | 1,495 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,450 | 1,460 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,456 | 1,465 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,437 | 1,453 |
| Artificial Analysisreported | Artificial Analysis Coding Indexindex score | 49.4 | 55.8 |
| Artificial Analysisreported | Artificial Analysis Intelligence Indexindex score | 24.7 | 26.1 |
| Artificial Analysisreported | GPQA Diamond% of questions | 87.3% | 86.8% |
| Artificial Analysisreported | Humanity's Last Exam% of questions | 28.5% | 30.1% |
| Artificial Analysisreported | IFBench% of instructions | 72.9% | 76.3% |
| Artificial Analysisreported | Long-context reasoning (AA-LCR)% of questions | 80.0% | 73.7% |
| Artificial Analysisreported | Terminal-Bench 2.1% of tasks | 52.4% | 61.8% |
| Artificial Analysisreported | Terminal-Bench Hard% of tasks | 45.5% | 43.2% |
| Artificial Analysisreported | Τ-bench banking% of tasks | 15.9% | 13.6% |
| Artificial Analysisreported | Τ²-bench telecom% of tasks | 81.9% | 97.7% |
| SimpleQA Verified (Epoch AI)reported | Correct answers% of questions | 48.0% | 34.0% |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 113.0% | 9.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.38 | 0.38 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 55.8 | 61.7 |
| Vending-Bench 2reported | Money after a yearUS dollars | $1,473.43 | $5,634.41 |
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.