Which one AI picks, and when.
Data as of Aug 14, 2026 · Based on 251 AI claims comparing the two · See how Parse measures this
Head to head
The two are furthest apart on authority, where Semrush leads by 10 points.
| Measure |  Ahrefs |  Semrush |
|---|---|---|
| Parse Score | 89 |
| 95 |
| Strength | 63 | 69 |
|---|
| Reach | 80 | 84 |
|---|
| Authority (widest gap) | 78 | 88 |
|---|
