Models · Claude
Claude Opus 4.6
Asked for a few hundred random integers, Claude Opus 4.6 does not pick evenly. This page is the shape of that preference, built from 36 recorded answers containing 10588 numbers, and it is what the identify tool compares a pasted reply against.
- Bank id
claude-opus-4-6- Family
- Claude
- Collected through
- API
- Status
- Inherited from ModelTrace; serving identity not independently verified
- Distinct values used
- 355 of 355
- Prompt environments
- 12 of 12
Distribution
Every bar is one value from 1 to 355; its height is how many times the model chose it across all recorded answers. A perfectly random picker would give a flat line. Nothing in the bank does.
Favourite numbers
| Number | Times chosen | Share |
|---|---|---|
| 43 | 54 | 0.51% |
| 57 | 54 | 0.51% |
| 47 | 51 | 0.48% |
| 11 | 47 | 0.44% |
| 38 | 46 | 0.43% |
| 37 | 45 | 0.43% |
| 48 | 45 | 0.43% |
| 52 | 45 | 0.43% |
| 7 | 44 | 0.42% |
| 56 | 44 | 0.42% |
| 63 | 44 | 0.42% |
| 29 | 43 | 0.41% |
How reliably it is recognised
In held-out testing across all twelve prompt environments, 12 of 12 three-answer runs named this model, 0 narrowed it to its family, 0 gave no answer, and 0 named a different model.
With this model removed from the bank and its own answers scored against the rest, 0 of 12 runs still confidently named another model, 0 stopped at the family, and 12 gave no answer. Its answers landed most often on Claude Fable 5.1 (4 of 12). That is the number to keep in mind if you are testing a version that is not listed here.
Both measurements use the open-set verdict the site applies, not the bank's raw ranking. The methodology page explains how they were made and what they leave out.