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How to read BaZi marriage compatibility with AI — in 4 steps

  1. 1

    Get both birth times (Gregorian calendar)

    You need each partner's year, month, day, hour and minute, plus birthplace. Aim for both birth times down to the minute — the Hour Pillar and true-solar-time correction directly affect the compatibility verdict.

  2. 2

    We compute both charts for you

    Enter each partner's birth details in the form and the engine handles true-solar-time correction, Four Pillars & Ten Gods, hidden stems, Nayin, Luck Pillars and annual years for each — then runs a pillar-by-pillar comparison of the two charts.

  3. 3

    Paste the prompt + both charts into the AI

    Tap “Copy prompt + both charts” to merge the compatibility instructions and the two charts into one plain-text block, then paste it straight into ChatGPT / Claude / DeepSeek — any of them.

  4. 4

    Ask the relationship questions that matter to you

    Once the AI gives the overall reading, follow up with “which years suit getting married,” “where are we most likely to clash,” “how to handle distance or in-laws,” and so on. The LLM already holds both full charts as context, so answers fit your specific pair.

How is this different from a random compatibility prompt online?

Plain prompt online
Shunshi
Both birth charts
Type in two by hand
Both generated automatically
Need to know BaZi
Yes
No
Spouse-palace clashes
Judge the Day-Branch relations yourself
Auto pillar-by-pillar comparison
Five-Element balance / Luck-Pillar sync
Calculate by hand
Included automatically
OCR misread risk
Two chart images more easily misread look-alike stem/branch characters
Plain-text output · zero risk
Cost
Free
Free · no forced sign-up

What does the AI produce from this compatibility prompt?

Below is an excerpt of a real compatibility reading the AI ran on a sample couple. The full output is roughly 1,500–2,500 words across six sections: overview, palaces, personality fit, timing, navigation, and verdict.

This analysis is for cultural and entertainment reference only and is not professional decision-making advice.

[Overview] Partner A is an Earth Day Master, Partner B a Metal Day Master; Earth generates Metal, so the dynamic between them is “Earth feeding Metal” — one gives, one receives, an overall tone of complement and support rather than opposition. Neither Day Master is extremely weak, so each has their own mind in the relationship; what they need is a division of roles, not dominance.

[Palaces · Spouse Palace] Partner A's Day Branch is Water, Partner B's is Earth, and the two form a partial Water harmony. The spouse palaces harmonize rather than clash — a sign of deep attraction and natural ease. But the merge leans toward Water (money and emotion), a hint that the two things to set ground rules on first are “how money gets spent” and “who settles the emotional weather.”

[Personality Fit] Earth is solid and steady, Metal is direct and decisive — this is “the steady one paired with the quick one,” and each fills the other's gap. Most friction is about pace: one wants to think it over, the other wants to act first. Agreeing in advance on “who calls the shots on which kind of decision” spares most of the arguments.

[Timing] Compared against both current Luck Pillars, recent years run largely in sync — a window suited to deciding big things together (marriage, buying a home). For the specific years to advance or hold, generate from your real birth details and the AI will mark them year by year.

FAQ

Is AI marriage compatibility accurate?

The AI does not predict whether you'll end up together. What it does: take both partners' structured BaZi data (Four Pillars & Ten Gods, Day-Branch spouse palace, Five Elements, Luck Pillars), apply the classical compatibility framework to these two charts, and output a theory-based comparative reading — where you complement, where friction is likely, what to mind in living together. The logic is the same one a senior reader uses to write a compatibility report. Treat it as “one compatibility-angle opinion,” not a “perfect match / doomed” verdict.

What if I don't know the other person's birth hour?

It still works, just at a reduced level: with no Hour Pillar, the Hour-Branch clashes and the exact start years of the Luck Pillars are omitted — but the Year, Month and Day pillars (including the Day-Branch spouse palace) are compared as usual, so the single most central compatibility factor, the spouse palace, is unaffected. Just leave the hour blank in the form; the engine treats it as “hour unknown” and never invents one.

Does the other person need to consent or know?

Compatibility only uses birth time and place, converted locally into a chart — no account or privacy authorization from the other person is involved. Whether you tell them is your call. We suggest treating the result as a tool for understanding how to get along, not for passing judgment on someone — BaZi looks at how two energies pair up, not at labeling anyone.

DeepSeek, ChatGPT, or Claude — which is best for compatibility?

Each has its strengths. DeepSeek-V3 has the most natural feel for Chinese metaphysics and the most idiomatic descriptions of stem/branch combinations and spouse-palace clashes; Claude is steadiest on long-context reasoning (year-by-year crossing of both Luck Pillars); ChatGPT is the most tidily structured. Our compatibility prompt has been run on all three and reaches “senior compatibility-reader level” on each. For free, we recommend DeepSeek; for long, deep analysis, Claude.

Can it tell which years suit getting married?

Yes, just ask. After the overall reading, ask “which years suit marriage / buying a home,” and it combines both current Luck Pillars with recent annual years to point out the rough advance/hold windows. It's a trend-level reference rhythm, not date selection (picking an exact auspicious day is a separate system), but enough to help you grasp the big direction.

Is it completely free?

Yes. Copying the compatibility prompt and generating both charts costs nothing and requires no sign-up. Registering lets you save both profiles and keep asking follow-ups inside the on-site LLM (both charts already pre-loaded as context). If you just want the prompt for your own ChatGPT or DeepSeek, it's free forever.

Enter both birth details → get your compatibility prompt + both charts in 30 sec

We've done the hard part — the two-chart computation and pillar-by-pillar comparison. All you do is paste the generated text into ChatGPT / Claude / DeepSeek.

Start compatibility, free →

For cultural & entertainment reference only · not professional decision-making advice