On April 29, Elon Musk announced the launch of Grok 3.5 beta in his account on the social network X, developed by xAI. The update will be available to SuperGrok subscribers next week. "This is the first AI that can, for example, accurately answer technical questions about rocket engines or electrochemistry. It reasons from first principles and offers answers that simply aren't available on the Internet," said Musk. Grok 3.5 is capable of deeply analyzing complex technical topics, providing solutions not found in open sources. The previous version, Grok 3, released in February 2025, increased the number of app downloads tenfold and attracted 260% more daily users in the US.