Apple may be preparing a new low-cost MacBook that could sit below the MacBook Air, and fresh clues suggest the company has tested more than one processor option while developing it. Earlier chatter pointed to a surprisingly powerful chip for an “affordable” model, but a newly surfaced internal kernel debug kit hints Apple also experimented with a much older iPhone processor during evaluation.
The most recent detail comes from a leaked internal iOS 26 build tied to Apple’s in-development hardware roadmap. Alongside that, a kernel debug kit used internally by engineers reportedly contains a project label “mac14p” running on a platform called “H14P.” After digging into the identifiers, this combination appears to line up with an A15 Bionic-based MacBook prototype, said to carry the codename J267.
If that A15 Bionic ever made it into a real retail configuration, it would raise eyebrows. The A15 is the same silicon used in the iPhone 13 lineup, and it would even trail Apple’s current entry-level iPad that ships with an A16. That’s why many expect the A15 reference to be part of earlier testing rather than the final plan.
At the same time, there’s separate evidence pointing to a second version of this budget MacBook that’s tied to the A18 Pro, the chip used in the iPhone 16 Pro and iPhone 16 Pro Max. This model is associated with the identifier J700 and is also linked to a “Sunrise” wireless subsystem attributed to MediaTek. That A18 Pro configuration is widely seen as the more likely production candidate, especially since earlier backend code previously suggested Apple was indeed targeting the A18 Pro for this lower-cost MacBook.
From a strategy standpoint, it would be unusual for Apple to launch a brand-new Mac in 2026 with a near five-year-old iPhone chip. A newer processor like the A18 Pro would provide stronger performance, better longevity, and a more future-proof experience—particularly important for buyers who pay attention to specs and expect their laptop to last several years.
As for the design, previous reports have mentioned a 12.9-inch display. However, there’s also a strong argument that Apple may stick closer to the familiar 13-inch MacBook Air screen size. Reusing a panel that has already been produced at scale for years could help Apple cut costs significantly, which is exactly what you’d expect for a new “affordable MacBook” category.
Current expectations also point to a launch in the first quarter of 2026. To broaden its appeal—especially among students and younger buyers—Apple could offer the low-cost MacBook in multiple color options.
For now, the biggest takeaway is that Apple appears to be actively testing configurations behind the scenes. The A15 Bionic mention looks like a development-stage experiment, while the A18 Pro version increasingly seems like the model that’s closest to becoming the low-cost MacBook many have been waiting for.
