The Model Council chose Suprmind over Perplexity mainly for its Decision...

https://holdenssplendiddigests.zenbloomer.com/posts/do-i-get-grok-in-perplexity-model-council-or-only-in-suprmind

The Model Council chose Suprmind over Perplexity mainly for its Decision Validation Engine, which adds a solid layer of accuracy checks—something Perplexity lacks