from my experience, grok seems to be the least censored models among all big vendors, not sure if it's got injected any political bias (I know there was a rumor that it was primed with Elon's personal feed at one point in the past) but that alone makes it better than ChatGPT and Gemini.

On top of the model, Grok seems to always do many web searches for every prompt I throw at it, which makes better than even Gemini as a search engine replacement (you'd think Google must have nailed that usecase but nope). ChatGPT is too lazy in this regard and half the times just split out an answer right away.