Elon Musk has flatly rejected reports that his rocket company, SpaceX, is building a pocket-sized artificial intelligence gadget.

According to Tom's Hardware, rumors have circulated that SpaceX is developing a handheld device running a proprietary operating system and packing advanced AI capabilities from xAI, Musk's artificial intelligence startup. The chatter described a product said to be thinner than an iPhone.

Musk, however, categorically denies the product exists. Tom's Hardware reports that he called the rumors "utterly false."

The denial is notable because a SpaceX-built, xAI-powered handheld would be an unusual move. SpaceX is best known for rockets and its Starlink satellite internet service, not consumer electronics, and a phone-like device would put Musk in direct competition with entrenched players like Apple. Tying such hardware to xAI would also deepen the connections between Musk's separate companies.

For now, the reported details — the proprietary operating system, the AI features, and the claim that the device is slimmer than an iPhone — remain unconfirmed rumors that Musk himself says are not real.

Why it matters: Speculation that one of the world's most prominent tech figures might enter the smartphone-style hardware market draws intense attention, but Musk's blunt denial is a reminder that not every viral rumor about his companies reflects an actual product in the works.