① On Tuesday, Musk posted that SpaceXAI will publicly release its latest artificial intelligence model, Grok 4.5, tomorrow (July 9); ② He described the model as "Opus-level," but stated that Grok 4.5 is "faster, more token-efficient, and lower-cost."
On Tuesday local time, Musk posted on social media that, based on "overwhelmingly positive feedback from customers" in the beta testing program, $SpaceX (SPCX.US)$ AI will publicly release its latest artificial intelligence model, Grok 4.5, tomorrow (July 9).
Musk described the model as "Opus-level," but stated that Grok 4.5 is "faster, more token-efficient, and lower-cost."
Opus is an artificial intelligence model developed by Anthropic, a leading U.S. AI company, and is regarded as one of the most powerful large language models currently available.
Grok is the flagship artificial intelligence model of xAI, Elon Musk’s AI company. xAI was merged into SpaceX earlier this year and was officially renamed SpaceXAI this week.
In April this year, xAI released Grok 4.3, and since then, Musk has been building anticipation for the next iteration of this flagship AI model.
At the end of last month, Musk posted on X that the latest generation of his large language model, Grok 4.5, had officially entered beta testing internally at SpaceX and Tesla. The model is built upon the 1.5 trillion-parameter V9 base model and was further trained with data from Cursor, a popular AI-powered programming tool.
At the time, Musk indicated that early evaluation results showed the model's performance was already approaching—and might even surpass—that of Anthropic’s flagship model, Claude Opus.
The billionaire entrepreneur also stated at the time that SpaceX plans to release a new artificial intelligence model—trained entirely from scratch—each month for the remainder of this year.
Currently, SpaceXAI is still striving to catch up with its competitors in the artificial intelligence field, as competition in the U.S. generative AI chatbot market continues to intensify.
According to the latest report from mobile app analytics firm Apptopia, SpaceXAI’s Grok app has continued to lose market share in the United States, declining to 8.7% in June from 10.6% in May. Overall, OpenAI’s ChatGPT ranked first in U.S. market share in June.
Following an initial surge after its listing, SpaceX shares have recently remained sluggish. On Tuesday, the stock fell nearly 7%, closing at a record low of $149.47 since its IPO—despite being officially added to the Nasdaq 100 Index on the same day, which failed to reverse its downward trend.
Despite widespread bullish sentiment on Wall Street, skepticism surrounding SpaceX has never ceased. Investors remain concerned about the company’s lofty valuation, its science-fiction-like ambitions in space exploration, and its lagging position in the artificial intelligence field relative to competitors.