DeepSeek is an open model that can be "untrained" to be uncensored; Grok to the best of my knowledge isn't [0]. So it's much worse.
[0]: What Musk has said is that when Grok 3 is "ready" (?), the previous model, Grok 2, will be released as open source; like most promises by this evil man, this one probably doesn't mean much, but it does mean that there's currently no plan to release Grok 3.