TL;DR
- A chatbot responds to user messages within a defined conversation.
- An AI agent pursues a goal by deciding what steps to take and completing actions.
- AI agents can use retained context and external tools to manage multi-step work with less user direction.
- Use a chatbot for predictable conversations and an agent for tasks that require decisions or actions.
- Sim combines Chat with more than 1,000 integrations in a visual workspace for building agent-chatbot hybrids.
We last verified the article on August 27, 2026.
AI agents vs. chatbots: key differences
A chatbot is a conversational interface that responds to user messages, usually within a predefined flow or a single exchange. An AI agent is a goal-directed system that uses external tools to complete tasks with limited user guidance. Anthropic defines an agent as an AI system equipped with tools that let it take actions, like running code, calling APIs, or messaging other agents.
AI agents can direct more of the work than chatbots. A chatbot waits for each prompt and returns a response, while an AI agent can plan a sequence of steps and adjust the plan after evaluating each result. An agent can also retain relevant context across steps or sessions and act through connected software, such as by searching a database or updating a CRM.
