Ollama is an open-source tool that is designed to simplify the process of running large language models locally, meaning on your own hardware. The idea here is very simple. As you know, if you want to run large language models or use a model, most likely you will have to rely on paid services like OpenAI, ChatGPT, and others.
With Ollama, you don't have to pay for anything—it's free, and that's the beauty. Ollama sits at the center and allows developers to pick different large language models depending on the situation and their needs. At its core, Ollama uses a command-line interface (CLI) to manage backend tasks like installation and execution of different models, all of which run locally. Ollama abstracts away the technical complexities involved in setting up these models, making advanced language processing accessible to a broader audience, including developers, researchers, and hobbyists. In a nutshell, Ollama provides a straightforward way to download, run, and interact with various models or LLMs without relying on cloud-based services or dealing with complex setup procedures.