Best Tools for Running LLMs Locally in 2026
Compare the best tools for running large language models locally: Ollama, LM Studio, llama.cpp, GPT4All, and LocalAI. Includes hardware requirements and model recommendations.

Running LLMs on your own hardware has gone from a niche hobby to a practical alternative to cloud AI services. The reasons to go local are compelling: complete privacy (your data never leaves your machine), no usage limits, no subscription fees, and the ability to customize models for your specific needs. The tools have matured to the point where getting started takes minutes, not hours.
Here is our guide to the best tools for running LLMs locally in 2026.
Tool Comparison
| Tool | Type | Ease of Use | Performance | API Compatible | Platform |
|---|---|---|---|---|---|
| Ollama | CLI + API | Very Easy | Excellent | OpenAI-compatible | Mac, Linux, Windows |
| LM Studio | Desktop GUI | Easiest | Very Good | OpenAI-compatible | Mac, Linux, Windows |
| llama.cpp | Library/CLI | Advanced | Best | Custom + OpenAI | Mac, Linux, Windows |
| GPT4All | Desktop GUI | Easiest | Good | Limited | Mac, Linux, Windows |
| LocalAI | API Server | Moderate | Very Good | OpenAI-compatible | Mac, Linux, Windows |
Ollama: The Standard
Ollama has become the de facto standard for running local LLMs, and for good reason. Installation is a single command, pulling a model is another single command, and you are chatting with a local AI in under two minutes.
# Install and run a model in two commands
curl -fsSL https://ollama.com/install.sh | sh
ollama run qwen3:8b
That simplicity masks serious capability. Ollama handles model management, quantization, GPU acceleration, and memory optimization automatically. It exposes an OpenAI-compatible API, which means any tool built for the OpenAI API can be pointed at your local Ollama instance instead. This makes it trivially easy to use local models with Aider, Open WebUI, or any other compatible application.
Best for: Developers, terminal-comfortable users, and anyone who wants a reliable local LLM backend that integrates with other tools.
Key feature: The model library is excellent. One-command access to hundreds of models, with automatic quantization selection based on your hardware.
LM Studio: Best GUI Experience
If you want a polished desktop application for running local models, LM Studio is the clear winner. It provides a beautiful chat interface, a model discovery browser, and one-click downloads. You can compare models side-by-side, adjust generation parameters visually, and manage your model library with a proper GUI.
LM Studio also runs an OpenAI-compatible server, so you can use it as a backend for other applications just like Ollama. The key difference is the user experience: everything is visual, discoverable, and approachable for non-technical users.
Best for: Non-technical users, people who prefer GUI over CLI, and anyone who wants to browse and experiment with different models easily.
Key feature: Side-by-side model comparison lets you evaluate different models on the same prompts simultaneously.
llama.cpp: Maximum Performance
For users who want every last drop of performance from their hardware, llama.cpp is the answer. Created by Georgi Gerganov, this C/C++ implementation of LLM inference is the engine that powers most other local LLM tools (including Ollama under the hood).
Using llama.cpp directly gives you access to the latest optimizations before they trickle down to higher-level tools. You get fine-grained control over memory allocation, batch sizes, context lengths, and quantization formats. On the same hardware, llama.cpp often achieves 10-20% better performance than wrapped tools.
The trade-off is complexity. Compilation, model conversion, and parameter tuning require technical knowledge. This is a tool for people who enjoy optimization and want maximum control.
Best for: Performance enthusiasts, researchers, and developers building custom LLM applications who need direct control over the inference engine.
Key feature: Supports the widest range of quantization formats and hardware acceleration backends (CUDA, Metal, Vulkan, ROCm).
GPT4All: Most User-Friendly
GPT4All from Nomic AI is designed for the broadest possible audience. The desktop application is clean and intuitive, model downloads are one-click, and it includes a unique local document indexing feature called LocalDocs. Point it at a folder of documents, and GPT4All will index them for RAG (retrieval-augmented generation) queries, all without any data leaving your machine.
Best for: Non-technical users who want local AI with document analysis capabilities. Students, writers, and professionals who want private AI without any technical setup.
Key feature: LocalDocs provides easy, private document Q&A without configuration.
LocalAI: The API Server
LocalAI positions itself as a drop-in replacement for the OpenAI API that runs entirely on your hardware. It supports not just text generation but also image generation (via Stable Diffusion), text-to-speech, speech-to-text, and embeddings, all through an OpenAI-compatible API.
This makes it the most versatile option for developers building applications that need multiple AI capabilities served locally.
Best for: Developers building applications that need a full suite of AI capabilities (text, image, audio) served through a standard API.
Key feature: Multi-modal support (text, image, TTS, STT) through a single unified API.
Hardware Requirements
Your hardware determines which models you can run and how fast they will respond. Here is a practical guide:
| Hardware | VRAM/RAM | Recommended Models | Experience |
|---|---|---|---|
| Entry Level (8GB GPU) | 8GB VRAM | 7-8B parameter models | Good for basic tasks |
| Mid Range (12GB GPU) | 12GB VRAM | 13-14B parameter models | Strong general performance |
| High End (24GB GPU) | 24GB VRAM | 30-70B parameter models | Near cloud-quality results |
| Apple Silicon (M1/M2/M3/M4) | 16-64GB unified | 7-30B+ depending on RAM | Surprisingly capable |
| CPU Only | 16GB+ RAM | 7B models (quantized) | Slow but functional |
Apple Silicon deserves special mention. The unified memory architecture means a MacBook Pro with 32GB of RAM can run models that would require a dedicated 24GB GPU on a PC. Performance is not quite as fast as a high-end NVIDIA card, but it is remarkably good and the power efficiency is unbeatable.
Which Models to Run Locally
Not all models are created equal for local inference. Here are our recommendations:
Qwen 3 8B: The best general-purpose model at the 8B parameter size. Excellent reasoning, strong instruction following, and genuinely useful for everyday tasks. This is the model we recommend most people start with.
Llama 4 Scout: Meta's latest efficient model optimized for local deployment. Strong coding and reasoning capabilities with excellent performance on consumer hardware.
Mistral Small: Fast and capable for everyday tasks. If you prioritize response speed over maximum capability, Mistral Small is an excellent choice.
DeepSeek R1 (distilled variants): For tasks requiring deep reasoning, the distilled versions of DeepSeek R1 offer chain-of-thought capabilities that punch above their weight.
Why Run LLMs Locally?
The privacy benefits alone justify local LLMs for many users. Your conversations, documents, and data never leave your machine. There are no terms of service changes to worry about, no data being used for training, and no risk of data breaches at a cloud provider.
Beyond privacy, local LLMs eliminate subscription costs and usage limits. After the initial hardware investment, every query is free. For developers integrating AI into applications, this can mean significant cost savings at scale.
The practical reality in 2026 is that local models in the 8-14B parameter range handle roughly 80% of tasks that most people use cloud AI for. They are not as capable as GPT-5.2 or Opus 4.6 for the most demanding tasks, but for drafting emails, summarizing documents, answering questions, and writing code, they are genuinely good enough.
Start with Ollama and Qwen 3 8B. You will be surprised how capable a local AI can be.