Apple Inc. is making one of the biggest-ever changes to its Mac silicon strategy, preparing to jump ahead to a new artificial intelligence-focused chip generation for its next top-end processors.

The company, currently on its M5 series, plans to debut a base M6 processor as early as this year for entry-level Macs, according to people with knowledge of the matter. But in a first, the company will skip higher-end versions of that chip, said the people, who asked not to be identified because the plans are private.