Apple is reportedly developing an iMac Pro powered by an M5 Max chip

iMac Pro discontinued
(Image credit: Shutterstock)

This week, a massive code leak revealed more than 30 Apple devices could debut in the next couple of years. Surprisingly, though, a separate code leak emerged shortly afterwards, revealing at least one more Apple product on the horizon.

Apple is reportedly developing a new iMac Pro featuring its M5 Max chipset, according to leaked internal software seen by MacRumors. The massive leak was the result of a prototype of iOS 26 that was accidentally sold, which contained a “ kernel debug kit” used by Apple’s engineers.

Apple M5 chip render

(Image credit: Future / Apple)

According to MacRumors, the software references an iMac codenamed J833c running platform H17C. H17C is a label associated with Sotra C, an alleged codename for the M5 Max chip. This line suggests that Apple is actively testing an iMac featuring the M5 Max.

There are other devices in the code like iPad minis running tvOS that are probably just used for internal Apple testing. However, the J833c codename appeared earlier this year in a different leak.

That July leak revealed every Mac product that could launch in 2026, including a variety of MacBooks and Mac Studios. However, that leak only showed the iMac featuring a standard M5 chip.

The M5 Pro and Max chips are expected to debut in 2026, and there have been rumors of Apple developing a high-end “Pro” iMac going all the way back to 2022. Bloomberg’s Mark Gurman has reported a few times that Apple is working on an iMac with a bigger screen.

Other Macs

M5 MacBook Pro

(Image credit: Apple)

Apparently, the leaked kit also confirmed a few other Mac devices that were highlighted in the July leak. It lists 14 and 16-inch MacBook Pros with M5 Pro and M5 Max chips, a 14-inch MacBook Pro featuring an M6 chip, and 14 and 16-inch MacBook Pro models with M6 Pro and M6 Max chips.

Additionally, it also lists 13 and 15-inch M5 MacBook Air models, an M5 and M5 Pro Mac mini, and new Mac Studio models, which could feature the M5 Ultra chip. The rumored budget-friendly MacBook featuring an A18 Pro chip is also listed.

We’ll have to wait until next year to find out if some of these leaked Macs turn out to be real products, but for now, take all this info with a grain of salt. If you’re planning to upgrade to one of the best MacBooks, though, it might be worth waiting until next year if you want a new laptop with a more powerful M5 Max or Ultra chip inside.


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Scott Younker
West Coast Reporter

Scott Younker is the West Coast Reporter at Tom’s Guide. He covers all the lastest tech news. He’s been involved in tech since 2011 at various outlets and is on an ongoing hunt to build the easiest to use home media system. When not writing about the latest devices, you are more than welcome to discuss board games or disc golf with him. He also handles all the Connections coverage on Tom's Guide and has been playing the addictive NYT game since it released.

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