PioneerRx dominates; BestRx survives on the startup question. PioneerRx holds a 31-point visibility gap and converts that presence into first-pick status 63% of the time, compared to BestRx's 8%. Claude is the sharpest separator: it scores PioneerRx at 85 versus a weak 37 for BestRx, meaning when buyers ask Claude for recommendations, PioneerRx nearly crowds out the competition entirely. BestRx's only foothold is the startup-and-small-team theme, where its positioning apparently resonates enough to beat PioneerRx head-to-head across ChatGPT, Claude, and Gemini.
| PioneerRx | BestRx | |
|---|---|---|
| Visibility Score | 79 | 48 |
| Rank in category | #1 | #2 |
| Mention rate | 82% | 65% |
| #1 pick rate | 63% | 8% |
| Avg. position when named | 1.4 | 3.6 |
All three models put PioneerRx ahead.
Each axis is one of the 8 measured buyer questions; the further out, the more of that question's answers name the brand. Hover an axis for the raw counts. Single-axis gaps ride on 9 answers each, so read the overall shape, not one spike.
Mentions out of 9 answers per question. Click any question for the full transcripts.
Open this matchup in the compare tool → · PioneerRx brand report · BestRx brand report
Measured from 72 fresh answers collected from the models' production APIs in September 2026; rankings change monthly. Neither brand can pay to appear here or to move the numbers. Full recipe on the methodology page.