Compare the workflow first
Both offer free BaZi charts without an account and publish calculation conventions. FateTell also presents FateBook, AnnualBook and AI conversations. Wenbu combines BaZi, I Ching, tarot and Zi Wei with an Agent that can read references. Your choice depends on whether you want a chart, a report or a conversation you can keep developing.
Public pages checked 2026-09-29. This comparison uses official sources; paid and signed-in features have not been tested.
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| Dimension | Wenbu | FateTell |
|---|---|---|
| Main experience | Four standalone tools and an Agent for charts, reference reading and reports | BaZi calculator, AI conversations, FateBook and AnnualBook |
| Free access | Free tools and journal; up to five AI readings and 12 Agent turns per network daily, within a site budget | Simple and Professional BaZi charts are free without an account; AI readings and FateBook are separate products |
| Calculation rules | Published engine versions, time conventions and draw methods | Calculator publishes solar-term, time-zone, solar-time and day-boundary conventions |
| Data and records | Birth details go to the server for calculation; conversations and journal records save in the browser and export as JSON | Calculator describes browser-based calculation and storage; app records and exports were not tested in an account |
| Your own AI assistant | Public MCP, REST, CLI and Skill with structured results | The pages reviewed do not describe equivalent interfaces; their absence has not been established |
Making a choice
Either can be a starting point for a free BaZi chart. Try Wenbu if you want to move between traditions, consult references or use the results with your own assistant. Explore FateTell’s official pages for its report products. This comparison covers public pages, without paid account testing or a test of predictive accuracy.