On June 28 local time, Musk posted on the X platform that the latest large language model Grok 4.5 from his company xAI has entered private testing within SpaceX and Tesla. Built upon the V9 foundational model with 1.5 trillion parameters and supplemented with training data from the AI programming tool Cursor, early evaluations indicate that its performance approaches or may even surpass that of Anthropic's flagship model, Claude Opus. Currently, reinforcement learning continues to optimize the model, while the supporting testing benchmarks are also becoming increasingly refined. Additionally, Musk stated that SpaceX plans to release a new AI model every month for the remainder of the year.
