Run Llama 3, Mistral, DeepSeek, and 100+ models locally with Ollama at zero cost. Complete 2026 guide covering installation, Python integration, OpenAI-compatible API, RAG apps, and custom Modelfiles.
Learn how to install Ollama and run large language models locally on your own hardware without internet access or API keys. This guide covers installation, model management, Python integration, LangChain setup, custom Modelfiles, and production considerations.