What is AI Agent?
An AI agent is a system that uses a language model to plan and take actions — calling tools, querying data and completing multi-step tasks — rather than just answering a single question. Agents can operate with a degree of autonomy toward a goal.
Agentic systems combine an LLM with tools (APIs, databases, code execution) and a loop that lets them reason, act, observe the result and continue. They power workflows like research, data processing and customer operations.