What computer is the best for AI

First of all, it depends on using online AI or offline AI.

For online AI, those computers bought within 5 years basically can install and use online AI clients.

For offline AI, recommending as below:

Apple computer with minimum 16GB RAM and M series CPU.

PC with minimum 16GB RAM, and CPU within 5 years.

Larger AI models need larger RAM.

Faster computing needs newer CPU with more cores.

Much faster computing needs more powerful GPU.

Recently, my dream machines for AI are Apple M5 Max with 128GB unified RAM, and PC with nVIDIA GPU 128GB RAM.