Quick answer: a chatbot talks — it answers questions. An AI agent acts — it can use your tools and systems to complete tasks, not just describe them.
The short version
A chatbot is a conversational interface. You ask, it answers — ideally grounded in your own content so the answers are accurate. It's great for support, FAQs and guiding people to the right place.
An AI agent goes a step further. It can plan, use tools, call your systems and carry out multi-step tasks — booking the appointment, updating the CRM, processing the request — with a human in the loop where it matters.
Side by side
| Chatbot | AI agent | |
|---|---|---|
| What it does | Answers questions | Answers and takes action |
| Autonomy | Responds to each message | Plans and completes multi-step tasks |
| Tools & systems | Usually none | Uses APIs, tools and your systems |
| Best for | Support, FAQs, guidance | Workflows, automation, operations |
| Cost & complexity | Lower | Higher (more value where it fits) |
When to use which
- Choose a chatbot when the job is answering questions — customer support, an internal knowledge assistant, lead qualification.
- Choose an AI agent when the job is getting something done across systems — processing orders, scheduling, updating records, running a workflow end to end.
- Often you want both — a conversational front door that hands off to an agent when it's time to act.
How Crux Digits helps
Whether you need a grounded chatbot or a full AI agent, we make it accurate and safe — see LLM Optimisation for grounding and guardrails, and AI Implementation for wiring it into your systems. And as always, you'll see a working MVP by the second call.