Compare / Gemini 3.1 Pro Preview vs GPT-5
Gemini 3.1 Pro Preview vs GPT-5
24 results from 5 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Gemini 3.1 Pro Preview | GPT-5 |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,208 | 1,183 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,472 | 1,421 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,477 | 1,413 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,480 | 1,373 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,509 | 1,460 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,479 | 1,410 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,487 | 1,435 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,480 | 1,397 |
| Artificial Analysisreported | Artificial Analysis Coding Indexindex score | 68.8 | 37.8 |
| Artificial Analysisreported | Artificial Analysis Intelligence Indexindex score | 29.7 | 23.0 |
| Artificial Analysisreported | GPQA Diamond% of questions | 94.1% | 85.4% |
| Artificial Analysisreported | Humanity's Last Exam% of questions | 47.0% | 28.5% |
| Artificial Analysisreported | IFBench% of instructions | 77.1% | 73.1% |
| Artificial Analysisreported | Long-context reasoning (AA-LCR)% of questions | 82.0% | 78.2% |
| Artificial Analysisreported | Terminal-Bench 2.1% of tasks | 73.8% | 35.2% |
| Artificial Analysisreported | Terminal-Bench Hard% of tasks | 53.8% | 37.9% |
| Artificial Analysisreported | Τ-bench banking% of tasks | 21.4% | 22.1% |
| Artificial Analysisreported | Τ²-bench telecom% of tasks | 95.6% | 86.5% |
| SimpleQA Verified (Epoch AI)reported | Correct answers% of questions | 73.5% | 50.1% |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 19.0% | 58.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.34 | 0.39 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 72.2 | 53.5 |
| Vectara Hallucination Leaderboardreported | Answer rate% of documents | 99.4% | 99.9% |
| Vectara Hallucination Leaderboardreported | Hallucination rate% of summaries | 10.4% | 14.7% |
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.