Elon Musk recently posted on the X platform that the latest artificial intelligence model Grok 4.5 developed by his xAI company has entered the private testing stage and is currently being trialed within SpaceX (SPCX.US) and Tesla (TSLA.US). This means that the model has been verified in two cutting-edge manufacturing companies within Musk’s system before being released to the public.
According to Musk, Grok 4.5 is built on a V9 basic model with 1.5 trillion parameters, and is supplemented with training data from the AI coding platform Cursor, showing its enhanced code generation and software development assistance capabilities. Internal testing usually refers to a limited trial open to a specific user group before official release, so that the development team can identify bugs, collect feedback, and optimize iterations.
This test update highlights the increasingly fierce competition among leading AI companies - each is vying to improve model performance and expand application boundaries. Musk has previously promised to release new AI models every month this year, indicating that xAI is adopting a radical development cycle strategy and is expected to further intensify its competition with competitors such as OpenAI (OPENAI), Anthropic (ANTHRO) and Google (GOOGL.US).
Although Musk did not disclose more technical details about the specific capabilities of Grok 4.5, the introduction of Cursor training data means that it continues to strengthen its layout in the fields of software development and code assistance - which is precisely one of the most important landing scenarios for the commercialization of large language models.
Musk also revealed that SpaceX plans to launch a new AI model "completely trained from scratch" every month for the rest of this year. This statement implies that the future version may not only be an optimization and upgrade of the existing system, but a basic model built through a new training process, and the technical span may be even more significant.
As this test progresses, xAI is continuing to expand its AI infrastructure and strives to build Grok into a strong competitor in the rapidly evolving market for generative AI. Preliminary testing within SpaceX and Tesla is expected to allow the model to be the first to be connected to real business scenarios such as large-scale engineering, manufacturing and software development and accumulate practical feedback before widespread deployment. Musk did not elaborate on the public launch timetable of Grok 4.5.