# Ask a chatbot, or use a calculator first?

Understand what a language model does, what needs an actual calculation, and how a tool-enabled assistant can use Wenbu.

Canonical: https://wenbu.app/en/compare/chatbot/

Public pages checked 2026-09-29. This comparison uses official sources; paid and signed-in features have not been tested.

Authorship: Wenbu · AI-assisted editorial. Listed sources have not been fetched again by this read; predictive accuracy was not compared.

## Compare the workflow first

A chatbot can explain terms, discuss your circumstances and organize thoughts. A chart needs calendar rules to be executed; a draw needs a defined random process. This comparison is about a tool-backed answer versus text generated without a tool. A general assistant with the right tools can do the former too.

Public pages checked 2026-09-29. This comparison uses official sources; paid and signed-in features have not been tested.

## Product comparison

| Dimension | Wenbu | Chatbot without tools |
| --- | --- | --- |
| Charts | Code calculates BaZi or Zi Wei from stated inputs and returns the conventions | A written chart alone does not show which calendar rules were executed |
| Draws and casts | Code performs the draw and returns the original cards or line values | A card name alone does not show how it was selected |
| Personal context | The built-in Agent sends the conversation and your selected context to AI | Context and data use depend on the host application’s settings |
| Interpretation | AI interprets the tool result; the explanation can still be wrong | Model-generated interpretation also needs its inputs and sources checked |
| Using both | Continue in the web Agent or pass results to your own assistant through MCP | An assistant that supports MCP or tool calls can use a calculator in the conversation |

## Making a choice

Look for the inputs, tool output and calculation conventions before assessing the prose. Connect Wenbu MCP to an assistant you already use for calculations and reference tools; its own model provides the interpretation. Choose the web Agent if you want charts, context selection and follow-up questions in one place.

## Sources and their scope

- [AI · how external tool calls work](https://api-docs.deepseek.com/guides/tool_calls/)
- [Wenbu · calculation source code](https://github.com/wenbu-app/wenbu/tree/main/src/lib)
- [Wenbu · Methodology](https://wenbu.app/en/methodology/)
- [Wenbu · Free-use policy](https://wenbu.app/en/free/)

[Find your starting point](https://wenbu.app/en/learn/choose-a-tool/)