For those using macOS 15.1 and have enabled Apple Intelligence, have you noticed a spike in your Mac CPU usage when requesting Apple Intelligence to proofread text? The longer the text, the more pronounced the spike. The CPU will reach 100% for a moment before slightly decreasing before receiving a response. Interestingly, I couldn’t identify an AI-related process associated with this spike. Instead, the kernel_task process is the one who consumes the CPU cycles. Apparently, Apple Intelligence runs in the kernel space.
