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Post № 0032026.10.10

Every number with its caveat.

Why each figure on this site comes from one ledger, in its wording, with the condition under which it holds.

One ledger

Every figure on this site comes from one claim ledger, in its wording, with the condition under which it holds and where it was measured. A number that does not have its caveat yet is not published, and a page never retypes a figure: it reads the ledger's entry.

The three we lead with

C2zypl labs research paper (under review), tables 1, 2 and 8
+2.1

+2.1 Gini points over the strongest open model of its class at 100 matured loans, across 208,443 held-out loans on 13 lending books from 12 lenders (+1.9 on test partitions alone); +1.3 across 100–500 loans, confirmed in a pre-registered held-out test (95% interval +0.5 to +2.2; 9 of 12 lenders).

Comparator: TabICLv2 with eight members. Ranking quality, not calibration; outcome-stratified contexts. Gini = 2·AUC − 1.
C1zypl labs research paper (under review), §3 and appendix A
0

Pretrained on synthetic credit economies; no borrower record enters pretraining.

Own-brand instances add continued pretraining on the bank's data, inside the bank's environment. Synthetic-only pretraining and bank-local serving are separate properties.
C5zypl labs serving report v3.1, tables 5 and 17
~50 ms

Scores an application in about 50 ms (54 ms median, 57 ms p95) on a 16-thread server CPU and about 20 ms on a GPU, matching the research model's predictions.

After a one-time portfolio encoding (about 90 s on CPU, 5 s on GPU, can run offline); 12,000-row context; one server.

Fixed before the books were scored

The hypotheses behind the ranking results were fixed before the held-out books were scored: seven of ten confirmed, all ten reported.

What we do not claim

  • Calibrated probabilities out of the box. Ranking is validated; probabilities are recalibrated per portfolio before use as PDs.
  • Reason codes for zypl.Foundation scores. Not shipped. Zehn's reason codes describe Zehn itself.
  • Higher approvals or lower losses. Only from a lender's own matured pilot evidence, with its permission.

Research results, not this demo

These are research results from zypl labs, not results of the demo. The demo runs on public lending books whose outcomes are published, so every number it shows can be checked. The full list is on the evidence page.