Your existing PC or Mac
Cheapest honest startA Mac mini or a desktop with a modern GPU already runs small and mid-size models well. For summarising, classifying, extracting and tagging — most of what business automation actually needs — this is usually enough.
A workstation GPU
More headroomAn RTX-class card gives you fast local inference for bigger models and room to run several jobs at once. The practical ceiling is how much video memory the card has.
NVIDIA DGX Spark
Serious local capacityA desktop AI machine built for this: 128GB of unified memory shared between CPU and GPU, so large models load without shuffling data back and forth. Runs models up to around 200 billion parameters locally and fine-tunes up to about 70 billion. Two units link together for larger models still.
A server, yours or ours
Always onThe same software on a machine in a data centre instead of your office. Reachable from anywhere, backed up, and it does not stop when someone unplugs the wrong thing.
You do not need the biggest machine on this list. Most business automation is summarising, classifying, extracting and tagging — work a model that fits on hardware you already own does perfectly well. We would rather size it honestly than sell you a box you will not use.