Grok 4.6 Leaks on Cursor Ahead of Schedule; Musk Confirms Launch This Week

Unreleased Grok 4.6 model appeared in Cursor's interface with 256K context limit. Musk confirms the 1.5T parameter model is scheduled to go live this week.

Woofun AI reports that the unreleased Grok 4.6 model briefly surfaced in Cursor's available model list, labeled as 'Cursor Grok 4.6 Fast.' The interface indicated a 256K context limit and a 'high effort' mode tailored for complex Agent programming tasks, though the model remained non-functional upon selection.Elon Musk previously disclosed that Grok 4.6 comprises 1.5 trillion parameters, with upgrades centered on supervised fine-tuning and reinforcement learning. While an initial release window was set for August 7th, Elon Musk later stated during SpaceX's first earnings meeting that the model could go live this week.