Start here

If you are new to running AI on your own computer, this page is for you. It takes about ten minutes, and it assumes no prior knowledge.

What can I do with my GPU?

When you want evidence rather than theory, that is the page to open. It shows what RigFact actually tested, what happened, whether that evidence relates to what you want to do, and what is still unknown for your hardware.

What can I do with my GPU? →

A. Run your first local LLM

Running a model on your own machine is mostly a sequence of six decisions. Here is the order that avoids most frustration.

  1. 1. Check your GPU and hardware.The memory on your GPU is the main constraint. Knowing how much you have tells you which models are even worth trying.
  2. 2. Choose a runtime or application.This is the software that loads and runs the model. Three of them come up constantly — see below.
  3. 3. Choose a model and configuration that fits.A model plus a quantization level plus settings is what actually has to fit, not the model name alone.
  4. 4. Download and start the model.The first load is usually the slowest. After that, starting again is normally much faster.
  5. 5. Try a simple prompt.Ask something small and check the reply appears at a speed you find acceptable before building anything on top of it.
  6. 6. Only then consider agents and tools.Agents add moving parts. It is much easier to debug them once a plain model is running reliably.

The three runtimes you will hear about

These are different front doors to the same underlying job. None of them is universally best; the right one depends on how much control you want and how comfortable you are with configuration.

Ollama

A convenient local runner and service. It suits people who are comfortable with simple commands, or who use an app built on top of it. It keeps the setup small.

LM Studio

A graphical, desktop-oriented path. It is useful if you prefer a user interface over a terminal, and want to browse and load models without typing commands.

llama.cpp

A lower-level and more technical runtime. It is useful when exact configuration and control matter to you, at the cost of more setup work.

RigFact has not validated every runtime and model combination, and nothing here is a recommendation of one runtime over another. Project documentation for each of them is the right place for installation steps.

B. Understand local AI in plain language

You will meet these words immediately. Here is what each one actually means, before the detail.

Model
The AI itself. A file with the learned weights that turns your text into a reply.
VRAM
The memory on your graphics card that is used while the model is running. It is the resource that most often decides what you can run.
Quantization
A way of making a model smaller so it uses less memory. Different methods and levels can affect quality and speed, so the exact method matters.
Context
How much information the model can work with at one time — your instructions, the conversation so far, and any document you give it. A larger context uses more memory.
Tokens
Small pieces of text the model reads and writes. A word is usually one or a few tokens. Pricing, limits and speed are often described in tokens.
Recipe
The exact model, settings and runtime configuration that RigFact captured or tested. It is the unit of evidence on RigFact — not a suggestion.
Agent
A system where the model does more than answer text: it can decide to take steps toward a task.
Tool calling
A mechanism that lets a model or agent request actions from defined tools or software, instead of only producing text.
Reproducible
Enough technical identity and source information was captured to seriously attempt the same run again.

"Reproducible" is not a promise

Reproducible only means enough was captured to seriously attempt the same run again. It does not mean guaranteed success, it doesnot mean recommended, it doesnot mean best, and it doesnot mean the configuration is universally compatible.

Will it feel fast?

This is the question almost everyone asks, and it deserves a careful answer. Performance measurements can exist — how many tokens per second a run produced, for example. But a throughput figure on its own does not automatically establish that the experience will feel good to you, because it depends on your task, your patience and what you are comparing against.

RigFact reports when a performance measurement exists, and states plainly when it cannot make a practical claim about how fluid something will feel. There is no approved tokens-per-second threshold that means "usable" or "smooth", and this page will not invent one.

C. From local chat to an agent

"Local AI" covers a wide range of ambition. It helps to see it as a progression, because each step adds real requirements.

  1. Local chat

    You send text, the model replies. This is the simplest thing to run locally, and the starting point for almost everyone.

  2. Document assistant

    The system may retrieve or hand documents and context to the model, so it can answer about material you provide.

  3. Coding assistant

    The model may inspect or change code, depending on the surrounding tooling you use it with.

  4. Agent with tools

    The model may be connected to defined tools and workflows, and can decide to act rather than only reply.

  5. Email / calendar agent

    This needs considerably more than a model running on your machine — see the note below.

An email or calendar agent is more than a model

Getting a model running locally does not give you an email or calendar assistant. That step also involves access to email and calendar systems, tool definitions and connectors, permissions and authentication, workflow logic, and safety and confirmation boundaries.

RigFact currently has captured evidence for specific workloads, such as agentic coding. That does not establish email workflow success, calendar workflow success, or arbitrary agent and tool success. Where RigFact has no matching captured evidence, the honest answer is that it does not know yet.

Where to go next

The main next step is the evidence for your own hardware — not another article.

What can I do with my GPU? →

RigFact can show you what it actually tested, what happened, whether that evidence relates to your goal, and what remains unknown.

If you already know your configuration

These are advanced tools, and they answer narrower questions than the page above.

Want the technical material?

You do not have to read this page first. VRAM requirements, quantization, and multi-GPU setups are covered in the technical guides.

Browse the technical guides →