Grok 4.3 beta is here, but Elon Musk said it's not 1T, it's a 0.5T update checkpoint. Brothers subscribing to SuperGrok Heavy, don't rush to brag yet.

ME News message: On April 18 (UTC+8), according to Beating monitoring by Dongcha, Grok 4.3 (beta) has been opened to users subscribed to the highest tier SuperGrok Heavy. On the 17th, users saw this version marked with “Early Access” in the dropdown menu on Grok.com. In the morning of the 18th, X user Mark Kretschmann posted that this version has 1T parameters, with a size twice that of Grok 4.20, and significantly longer training time. Elon Musk, CEO of xAI and Tesla, then corrected this in the same tweet, stating that the current 4.3 (beta) is still a 0.5T model—just an updated training checkpoint, not the 1T new model speculated by the outside world