# Chatbot guides

> Plain-language explanations of bot types, pricing meters, knowledge bases, WhatsApp rules and the law.

- [What is the difference between a chatbot and an AI agent?](https://chatbots.reviews/en-us/guides/chatbot-vs-ai-agent)
- [Rule-based or AI chatbot: which should you build?](https://chatbots.reviews/en-us/guides/rule-based-vs-ai-chatbots)
- [How is chatbot software priced?](https://chatbots.reviews/en-us/guides/chatbot-pricing-models)
- [What counts as a conversation in chatbot pricing?](https://chatbots.reviews/en-us/guides/what-counts-as-a-conversation)
- [How do you write a knowledge base for a chatbot?](https://chatbots.reviews/en-us/guides/how-to-write-a-bot-knowledge-base)
- [What is a chatbot containment rate?](https://chatbots.reviews/en-us/guides/containment-rate-explained)
- [What are Meta's rules for chatbots on WhatsApp?](https://chatbots.reviews/en-us/guides/whatsapp-chatbot-rules)
- [When should you not use a chatbot?](https://chatbots.reviews/en-us/guides/when-not-to-use-a-chatbot)
- [Chatbots and the law in the United States](https://chatbots.reviews/en-us/guides/chatbots-and-the-law)

> **Scored from public documentation, on a rubric you can read.** Scores come from five published criteria: pricing clarity, access, builder depth, reach and handoff, and data and trust. Every price and limit is stored once, in one product database, with a link to its source, so no two pages on this site can disagree. Rubric v1.0 · The reference-bot build test has not been run yet. Until it has, no page here says a product was tested. [Read the full method](https://chatbots.reviews/en-us/how-we-review) · [The reference-bot test](https://chatbots.reviews/en-us/reference-bot-test)

---

Canonical: https://chatbots.reviews/en-us/guides