Explains the identity of a business thing
How a thing is told apart, who assigns its identifier, and whether it can change or be reused.
Can AI do this?
People still lead Few or none of the tested AI models showed they master this. 1 of 10 models master it.
| Model | Tier | Probability of mastery | Status |
|---|---|---|---|
| gemini-4-argon | Flagship | 96% | Mastered |
| gemini-3.1-pro-preview | Flagship | 68% | Not shown |
| gpt-6-astra | Flagship | 92% | Not shown |
| claude-fable-5-1 | Flagship | 92% | Not shown |
| gemini-3.8-flash | Mid tier | 67% | Not shown |
| gpt-6.1-sol | Mid tier | 89% | Not shown |
| claude-sonnet-5-5 | Mid tier | 89% | Not shown |
| gemini-3.5-flash-lite | Low cost | 68% | Not shown |
| gpt-6-luna | Low cost | 66% | Not shown |
| claude-haiku-5-5 | Low cost | 65% | 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: How a thing is told apart, who assigns its identifier, and whether it can change or be reused
How it is assessed: States the identity rules a sample thing needs
Related knobits
Needed for
All 47 knobits of Capture data requirements.
Source: Data-management practice used by the stage 1 reference and review checklist