Is the Match Score Deterministic?

Yes. The match score is deterministic — running the same search on the same configuration against the same model version will always produce the same score. This is important for audit trails and regulatory defensibility.

When scores will change

Scores can change in three circumstances:

• Input data changes — if you add a middle name, remove a date of birth, or change a country association in the search query, the score will change. More data generally improves precision; less data introduces more uncertainty.

• Configuration changes — changing match thresholds or risk collection settings changes which results are surfaced, but does not change the underlying scores themselves.

• Model updates — ComplyAdvantage periodically releases updates to the Seeker model as new analyst training data becomes available. Clients are notified in advance whenever the model changes.

For audit purposes: Because the score is deterministic, any screening decision can be reproduced exactly by re-running the same search on the same model version with the same input data. This provides a clear, traceable record for compliance audit.

Practical implication

If an analyst reviews a profile and sees a score of 74, and a second analyst reviews the same profile the following day under the same configuration, they will see the same score of 74. Scores do not fluctuate between sessions or users. The only variable is the input.