Why Model Version Numbers Matter More Than Brand Names: Lessons After Perplexity Sonar Pro Hit 37% Citation Errors

https://beausexcellentperspective.trexgame.net/when-a-hospital-cto-must-choose-an-llm-for-clinical-decision-support-aisha-s-story

I learned the hard way that brand reputation is a poor substitute for disciplined version control