Ollama
Ollama is a macOS app for running and managing local AI models, with a bundled CLI and desktop features for on-device workflows.
What is Ollama?
Ollama is a macOS application from Infra Technologies, Inc. for running large language models locally on a Mac. The macOS app installs a desktop application and includes the `ollama` command-line tool, which the app can link into `/usr/local/bin` so it is available in Terminal. Ollama is used to download models, serve them locally, and power chat or API-based workflows on the same device. The Mac app also supports desktop-oriented features such as signing in through the app settings, and Ollama documents app-specific behavior for model storage and PATH integration. Users commonly encounter it when setting up local AI development, testing open models without a cloud dependency, or exposing a local model endpoint for other tools. Because model files can be very large, Ollama installations often consume substantial disk space beyond the app bundle itself.
Key features
- Runs large language models locally on macOS
- Includes the `ollama` CLI for Terminal-based use
- Can create a PATH link for the CLI in `/usr/local/bin`
- Downloads and stores model files for local use
- Provides a local API/service for model interactions
- Supports desktop app sign-in through in-app settings
- Works with model-based chat and automation workflows
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Safety overview
Status: Mostly safe
Ollama is legitimate local AI software, but it downloads large model files, exposes local model-serving functionality, and may require permission to place the `ollama` CLI in `/usr/local/bin`. Review disk usage and network exposure if you use it as a local service.
Recommendation: Keep it if you intentionally use local AI models or the `ollama` command. Remove it if you no longer use Ollama and want to reclaim app and model storage space.
Common paths
/Applications/Ollama.app/usr/local/bin/ollama
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