The lenses
Transfer lens
The Transfer lens tests whether the structural shape that resolved one environment continues to hold in a second environment. The output reads as a stability verdict on the structural reading, not the model parameters.
What it answers
The lens answers whether the verdict transfers when the environment changes. A passing reading means the structural shape holds. A failing reading means the structural reading from environment A does not survive into environment B, and the buyer should treat the model as environment-specific rather than universal.
When to run it
Run the Transfer lens when a model is moved across geographies, customer segments, or time windows, and the buyer needs a structural-stability check before relying on the model in the new environment. The lens is also used at the end of a backtest, where the buyer needs to know whether the structural reading from the in-sample window holds out of sample.
Public-shaped output
The result page renders a Transfer panel with two columns. The left column carries the verdict from environment A. The right column carries the verdict from environment B. A header row above the columns reports the stability reading, which is either Transfers, Partially transfers, or Does not transfer.
Input requirements
The lens consumes two CSVs of the same shape, one per environment. The buyer uploads environment A first, runs the diagnosis, then uploads environment B and selects Transfer from the lens preview grid. The shared feature set must overlap on at least the variables the resolver used to reach the verdict on environment A.
Tier gate
Business tier and above unlock the lens. Free, Growth, and Pro do not.
| Tier | Unlocked |
|---|---|
| Free | |
| Growth | |
| Pro | |
| Business | ✓ |
| Enterprise | ✓ |
What buyers do with it
Buyers catch regime breaks before they show up in production loss. A model whose Transfer reading is Does not transfer is environment-specific by structural evidence, not by anecdote; the buyer's next decision is to scope the model to its native environment or recalibrate for the target environment.
Reviewers reading the report under EU AI Act Article 9 (high-risk per Annex III, applicable from August 2026) treat the Transfer panel as documented stability evidence; the panel reports both verdicts and the stability reading, without prescribing a recalibration.