A Saju reading has two stages: computing the ganji (the chart) and interpreting it. If the foundation — the ganji — is wrong, even the most eloquent interpretation is ultimately nonsense.
Setting the four pillars (year, month, day, hour ganji) from your birth data. This is astronomy and calendar math — there is exactly one correct answer.
Interpreting wealth, love, health and more from the chart. This is where rich language and insight matter.
If ① is wrong, ② becomes “eloquently written nonsense.” The accurate foundation must come first.
LLMs like ChatGPT, Gemini and Claude are writers, not calculators. They produce fluent prose, but are structurally weak at precise astronomical and arithmetic computation.
The year pillar changes at ipchun, not Jan 1; the month pillar changes at the 24 solar terms. These moments are fixed by the sun's ecliptic longitude and differ to the minute each year. Approximating them breaks the month pillar on boundary dates.
Lunar month lengths and leap months are set by actual new moons and solar terms — astronomical events with no closed formula, requiring precise tables. LLMs can't reproduce them reliably.
The day pillar is the total days since an epoch, mod 60. Faking tens of thousands of days of integer math “in your head” means a single day's error flips the entire day pillar.
An LLM states a wrong ganji as fluently as a right one and never checks its own work — producing results that look authoritative but are wrong.
We compute your chart from a precise perpetual-calendar database with solar terms, true solar time and lunar–solar conversion built in — equally accurate whether you enter a solar or lunar date.
Only on a correctly built chart does the AI add deep interpretation. The AI focuses on what it does best — rich reading — not computation.
“Rich interpretation on an accurate foundation.” That is what a truly accurate reading requires.