This rapid growth from 63 to 668 models on OpenRouter sounds like a downside risk for actual usability, not a clear win for daily research.
More models don't automatically mean better information; it just means more options that need a serious quality control threshold before they are fit for purpose.
Imagine trying to plan a wedding if the guest list kept multiplying by ten every few months — you'd need a fail-safe to filter out the irrelevant or unstable options just to get to a workable number.
Without that, all that tracking is just noise, making it harder to find what truly matters for any practical application.