Grok 4.5 Private Beta: SpaceX & Tesla Test New AI Model

Grok 4.5 has entered private beta testing within SpaceX and Tesla. This new version of Grok is built on xAI's 1.5-trillion-parameter V9 foundation model. It also uses Cursor-related datasets to improve coding, reasoning, and software development. What's interesting is that Grok 4.5 is not yet available to the public. Its deployment within SpaceX and Tesla shows that xAI uses these companies as testing grounds for its AI before wider commercial releases. This strategy allows engineers to evaluate performance with real-world workloads. Internal testing helps developers refine accuracy and optimize latency. The bottom line is that the race among AI developers continues, with companies building increasingly capable foundation models for various applications.