What is LM Studio?

LM Studio is a free desktop application that lets you download and run open-source AI models on your own computer through a friendly graphical interface. It is one of the easiest ways for non-programmers to try local AI, because everything happens through menus and buttons rather than the command line.

LM Studio is available for Windows, Mac and Linux. It is free for personal use and has offered free use for work as well; check its official website for current licence terms.

Getting started:

1. Download LM Studio from its official website, lmstudio.ai, and install it.
2. Open the model search or discover section.
3. Search for a model, such as versions of Llama, Qwen, Gemma, Mistral or DeepSeek.
4. LM Studio shows which versions fit your computer's memory. Choose one and download it.
5. Load the model and start chatting in the chat window.

Key features:

1. Model browser. Search and download models from Hugging Face directly within the app, with guidance on which sizes fit your hardware.
2. Chat interface. A familiar chat layout similar to online AI assistants.
3. Document chat. Attach documents and ask questions about them, all processed locally.
4. Settings. Adjust parameters like temperature, context length and system prompts.
5. Local server. Developers can start a local API server that works like the OpenAI API, so applications can use local models.
6. Hardware use. It can use your GPU when available, and works well on Apple Silicon Macs.

Hardware guidance: 16 GB of RAM is a comfortable starting point for small models. More memory, or a GPU with plenty of video memory, lets you run larger and more capable models. LM Studio shows estimates to help you avoid downloading models that are too big.

Why use LM Studio?

Privacy. Your conversations and documents stay on your computer.
Offline use. Once downloaded, models work without internet.
No subscription. There are no usage fees.
Learning. A great way to understand how different models behave.

Things to keep in mind: local models are usually less capable than the best cloud assistants, they can be slow on older computers and large model files take significant disk space.

LM Studio and Ollama are the two most popular tools for local AI. LM Studio is often preferred by people who want a visual interface; Ollama by developers who like the command line.