Recognises an undocumented null meaning
Nulls whose meaning is not stated.
Can AI do this?
Not settled yet The benchmark tested this, but the models' answers do not settle yet whether they master it. 0 of 4 models in the current benchmark master it.
| Model | Tier | Probability of mastery | Status |
|---|---|---|---|
| gemini-4-argon | Flagship | 66% | Not shown |
| gemini-3.5-flash-lite | Low cost | 65% | Not shown |
| gpt-6-luna | Low cost | 66% | Not shown |
| claude-haiku-5-5 | Low cost | 67% | Not shown |
Mastered means a probability of at least 90% that the model has this knobit, estimated from its graded answers. “Not shown” means the answers do not settle it either way. How the models are tested.
What it looks like in practice
Expected result: The field and the meaning to ask for
How it is assessed: Flags the deficient case and passes the acceptable one. Deficient: FP-006 LN_END_DT 18 % null, meaning not stated Acceptable: "Null = open-ended (revolving)" from the owner
Also known as: Null meaning undocumented
Related knobits
Builds on
All 13 knobits of Analyse and profile the sources.
Source: Review checklist 01-source-analysis, row 4 (DMBOK ch. 13)