AI iteration speeds up again! Musk reveals that Grok 4.5 is already being internally tested at SpaceX and Tesla, Inc.

Elon Musk recently posted on the X platform that his AI company xAI has developed the latest artificial intelligence model, Grok 4.5, which has entered the private testing phase and is currently being tested internally at SpaceX and Tesla, Inc. This means that before its public release, the model has already been tested and validated within Musk's two cutting-edge manufacturing companies. According to Musk, Grok 4.5 is built on top of a V9 base model with 1.5 trillion parameters, supplemented with training data from the AI coding platform Cursor, demonstrating its enhanced capabilities in code generation and software development assistance. Internal testing typically refers to limited trials opened to specific user groups before official release, in order for the development team to identify vulnerabilities, collect feedback, and optimize iterations. This testing update highlights the increasingly competitive pace of competition among top AI companies, as each strives to improve model performance and expand application boundaries. Musk has previously promised to release a new AI model every month this year, indicating that xAI is taking an aggressive development cycle strategy that may further intensify the competition with rivals such as OpenAI, Anthropic, and Alphabet Inc. Class C. While Musk did not disclose more technical details about the specific capabilities of Grok 4.5, the introduction of Cursor training data implies a continued focus on strengthening its presence in the field of software development and code assistance, which is one of the most important commercial applications of large language models. Musk also revealed that SpaceX plans to launch a "completely new AI model trained from scratch" every month for the remainder of the year. This statement suggests that future versions may not only be optimizations and upgrades of existing systems, but rather fundamental models built through entirely new training processes, with potentially significant technological advancements. As xAI continues to expand its AI infrastructure, the ongoing testing and development of Grok aims to position it as a strong competitor in the rapidly evolving generative AI market. By testing internally at SpaceX and Tesla, Inc., the model may gain real-world feedback in large-scale engineering, manufacturing, and software development scenarios before extensive deployment. Musk has not provided a timeframe for the public launch of Grok 4.5.