Compare / Claude Opus 5.5 vs Mistral Small 4
Claude Opus 5.5 vs Mistral Small 4
8 results from 2 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Claude Opus 5.5 | Mistral Small 4 |
|---|---|---|---|
| Artificial Analysisreported | Artificial Analysis Intelligence Indexindex score | 57.6 | 11.3 |
| Artificial Analysisreported | Humanity's Last Exam% of questions | 61.4% | 9.9% |
| Artificial Analysisreported | Long-context reasoning (AA-LCR)% of questions | 84.7% | 49.7% |
| Artificial Analysisreported | SciCode% of problems | 66.9% | 38.8% |
| Artificial Analysisreported | Terminal-Bench 4.0% of tasks | 59.6% | 0.0% |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 2.0% | 22.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.43 | 0.31 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 70.0 | 40.3 |
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.