# llm > Interact with Large Language Models (LLMs) via remote APIs and models that can be installed and run on your machine. > More information: . - Set up an OpenAI API Key: `llm keys set openai` - Run a prompt: `llm "{{Ten fun names for a pet pelican}}"` - Run a [s]ystem prompt against a file: `cat {{path/to/file.py}} | llm --system "{{Explain this code}}"` - Install packages from PyPI into the same environment as LLM: `llm install {{package1 package2 ...}}` - Download and run a prompt against a [m]odel: `llm --model {{orca-mini-3b-gguf2-q4_0}} "{{What is the capital of France?}}"` - Have an interactive chat with a specific [m]odel: `llm chat --model {{chatgpt}}`