Ollama

Ollama has revolutionized access to local language models by making them as simple as a terminal command. Created in 2023, this open source tool lets you download, run and manage LLMs directly on your hardware — whether it's a Mac with Apple Silicon, a PC with NVIDIA GPU, or a Linux server.

Ollama's approach is radically simple: type ollama run llama3.3 and the model downloads, configures itself and starts automatically. Over 40,000 community integrations connect to Ollama, from web interfaces like Open WebUI to development IDEs.

In 2025, Ollama launched cloud plans (Pro at $20/month, Max at $100/month) offering access to more powerful models hosted on dedicated servers, while keeping local execution free and unlimited. Your data always stays private: no prompts or responses are logged or used for training.

The tool supports GGUF quantization, GPU acceleration (CUDA, ROCm, Metal), running multiple models simultaneously, and exposes a local REST API compatible with OpenAI. It's the preferred choice for developers who want to integrate local AI into their projects, automation pipelines, or RAG workflows.