Recognises a hidden definition of a second concept
The definition explains a second concept inline. Each definition covers one concept; the other concept gets its own term.
Can AI do this?
People still lead Few or none of the tested AI models showed they master this. 0 of 4 models in the current benchmark master it.
| Model | Tier | Probability of mastery | Status |
|---|---|---|---|
| gemini-4-argon | Flagship | 10% | Not shown |
| gemini-3.1-pro-preview* | Flagship | 15% | Not shown |
| gpt-6-astra* | Flagship | 100% | Mastered |
| claude-fable-5-1* | Flagship | 100% | Mastered |
| gemini-3.8-flash* | Mid tier | 100% | Mastered |
| gpt-6.1-sol* | Mid tier | 100% | Mastered |
| claude-sonnet-5-5* | Mid tier | 89% | Not shown |
| gemini-3.5-flash-lite | Low cost | 48% | Not shown |
| gpt-6-luna | Low cost | 71% | Not shown |
| claude-haiku-5-5 | Low cost | 46% | Not shown |
* From the earlier benchmark of 2026-10: 10 data-modelling test tasks, 3 runs per task, graded by claude-opus-5-5. These models have not taken the current 123 tasks yet; the two methods differ, so compare their figures with care. They are left out of the “most models” counts and the best-model picks.
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 second concept to give its own term
How it is assessed: Flags the deficient case and passes the acceptable one. Deficient: available balance: ledger balance, i.e. the sum of all entries booked to the account, minus holds Acceptable: available balance: ledger balance minus holds (with ledger balance as a separate term)
Also known as: Hidden definition (business term)
Related knobits
Builds on
All 18 knobits of Define business terms in the glossary.
Source: Review checklist 03-business-glossary (metadata-management), row 9; formerly data-modelling K-209