Ollama

Ollama is an open-source tool for running large language models locally on Mac, Windows, and Linux with a simple command-line interface. It manages model downloads, GPU acceleration, and API serving automatically. Ollama supports Llama 3, Mistral, Gemma, Phi, and dozens of other models with a single command. Its OpenAI-compatible API allows existing applications to switch to local models without code changes. Used by developers and privacy-conscious users who want to run powerful AI models entirely on their own hardware without API costs or data privacy concerns.