About

This tool helps you figure out which open-source LLMs your computer can run locally, and roughly how fast, before you download anything. Everything runs in your browser — no account, no tracking of your hardware, no backend.

Estimates are derived from device specs and model architectures, not live benchmarks. See the methodology for details and limitations.

The catalog maintains itself: a daily release radar scans the Hugging Face Hub for significant new open models and adds them automatically, and a weekly refresh keeps every model's params, quantizations, and download sizes current — no manual updates.

When a model is too large for your machine, we may link to cloud GPU providers that can run it; the build advisor also links to hardware to buy. Some of those are affiliate links — if you sign up or buy through them we may earn a small commission, at no cost to you. As an Amazon Associate, we earn from qualifying purchases. It never changes which models or machines we show, or how we rank them — the ranking is always cheapest-that-works first. See our privacy & terms for what we collect.