Two complete BaZi charts, not a zodiac shortcut
ShenShu AI starts by calculating each person's Four Pillars with structured BaZi rules, then lets AI explain the result. Its compatibility tool uses both birth dates and times to show Heavenly Stems, Earthly Branches, Five Elements, Ten Gods, and symbolic stars for each person. This goes further than matching two birth-year zodiac signs or returning a single score.
The form accepts separate details for both people. Each side also has an optional true-solar-time correction with a birth-city field. If an exact birth time is unknown, the official guidance says 00:00 can be used, with the warning that the hour pillar and parts of the reading may be less accurate.
Relationship structure and timing in one report
The compatibility reading covers marriage indicators, Spouse Palace themes, Five Element needs and favorable elements, interaction patterns, friction, and areas that may require adjustment. It also compares the two people's 10-year luck cycles and annual timing, then continues into children-related signs and the longer-term direction of career, wealth, and lifestyle.
ShenShu AI describes these as patterns for reflection, not predictions of a guaranteed marriage outcome. The site also notes that a birth time close to a Chinese two-hour boundary can change the hour pillar, so uncertain times are better checked against a nearby range.
Free charts first, deeper AI when needed
The personal chart, two-person chart, and one AI BaZi reading per day are available without signing up. Paid one-time passes unlock the advanced AI model, unlimited chart readings, ongoing questions, and saved profiles and reading history. Free compatibility calculations are described as not storing birth details; advanced signed-in sessions may save reading history, which can be deleted from the account.
The calculator and supporting explanations are available in English, Simplified Chinese, and Traditional Chinese. Separate tools cover personal BaZi reading and 10-year luck cycles, while the learning library explains Five Elements, Day Master, Ten Gods, stems, branches, and compatibility concepts for beginners.
