LM Studio

LM Studio

By LM Studio

Desktop app to discover, run, and serve local LLMs with an OpenAI-compatible server

AppProprietary
Free tier Paid

Doc version 1.0 · Updated

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Overview

LM Studio is a desktop application (macOS, Windows, Linux) for discovering, downloading, and running local LLMs in GGUF and MLX formats, with a chat UI and a built-in server.
The server is OpenAI-compatible, so your existing code — or LiteLLM — can point at localhost instead of a cloud provider. It is free for personal and commercial use.

flowchart LR
  hub[model catalog] --> lms[LM Studio]
  lms --> chat[chat UI]
  lms --> server[(OpenAI-compatible server)]
  server --> app[your app]

The Code samples tab shows calling the local server.

When to use it

Choose LM Studio when you want the easiest way to run models locally with a GUI — browsing, downloading, and serving — rather than a CLI runtime like Ollama or a GPU serving engine like vLLM.