Grok 4.5 Powers Rapid iOS App Builds And Design Tasks In Cursor is circulating through @elonmusk, with the visible post framing the story around that claim. So far, the public evidence is narrow, so the safest read is what the post says and what remains unverified. The useful read for readers is therefore limited but clear: what was shown or claimed, who put it in front of the conversation, and what would need more confirmation before anyone treats it as settled.