Nemotron 3 Ultra Behavioral Fingerprint
How NVIDIA's Nemotron 3 Ultra answers one-word probe questions at temperature 1.0 — random numbers, colors, animals, coin flips — measured over 448 valid samples in the open dataset of "One Token Is Enough" (arXiv:2607.10252).
Vendor
NVIDIA
Data generated
2026-07-08
Probe cells
15
Valid samples
448
Randomness score
29 / 100
Mean normalized entropy across cells, 0–100. 100 would be a uniform-random baseline; real models score far lower.
Signature answers
Favorite random number (1–100)
42
30 / 30 answers
Favorite color
blue
18 / 30 answers
Coin flip: heads
80%
Share of heads across coin-flip cells.
Answer distributions by probe cell
Empirical distributions of normalized one-word answers, per task and language. H is the Shannon entropy in bits; the uniform baseline is log2 of the answer-domain size.
Coin flip · English
n = 30 · H = 0.78 bit · uniform baseline 1.00 bit
| Answer | Count | Share |
|---|---|---|
| heads | 23 | 76.7% |
| tails | 7 | 23.3% |
Coin flip · Chinese
n = 30 · H = 0.65 bit · uniform baseline 1.00 bit
| Answer | Count | Share |
|---|---|---|
| heads | 25 | 83.3% |
| tails | 5 | 16.7% |
Favorite number · English
n = 29 · H = 0.98 bit · uniform baseline 13.29 bit
| Answer | Count | Share |
|---|---|---|
| 7 | 17 | 58.6% |
| 42 | 12 | 41.4% |
Favorite number · Chinese
n = 30 · H = 0.99 bit · uniform baseline 13.29 bit
| Answer | Count | Share |
|---|---|---|
| 42 | 17 | 56.7% |
| 7 | 13 | 43.3% |
Random animal · English
n = 30 · H = 2.79 bit · uniform baseline 5.64 bit
| Answer | Count | Share |
|---|---|---|
| penguin | 13 | 43.3% |
| tiger | 3 | 10.0% |
| giraffe | 3 | 10.0% |
| otter | 2 | 6.7% |
| elephant | 2 | 6.7% |
| platypus | 2 | 6.7% |
| lynx | 1 | 3.3% |
| dolphin | 1 | 3.3% |
+ 3 more answers
Random animal · Chinese
n = 30 · H = 2.42 bit · uniform baseline 5.64 bit
| Answer | Count | Share |
|---|---|---|
| 企鹅 | 16 | 53.3% |
| 大象 | 3 | 10.0% |
| 河马 | 2 | 6.7% |
| 猫 | 2 | 6.7% |
| 猴子 | 2 | 6.7% |
| 羊驼 | 1 | 3.3% |
| 鹦鹉 | 1 | 3.3% |
| 狮子 | 1 | 3.3% |
+ 2 more answers
Random city · English
n = 30 · H = 2.08 bit · uniform baseline 5.64 bit
| Answer | Count | Share |
|---|---|---|
| tokyo | 19 | 63.3% |
| paris | 2 | 6.7% |
| chicago | 2 | 6.7% |
| kyoto | 1 | 3.3% |
| oslo | 1 | 3.3% |
| zaragoza | 1 | 3.3% |
| berlin | 1 | 3.3% |
| copenhagen | 1 | 3.3% |
+ 2 more answers
Random city · Chinese
n = 29 · H = 3.57 bit · uniform baseline 5.64 bit
| Answer | Count | Share |
|---|---|---|
| 雷克雅未克 | 7 | 24.1% |
| 京都 | 5 | 17.2% |
| 东京 | 2 | 6.9% |
| 布拉格 | 2 | 6.9% |
| 巴塞罗那 | 2 | 6.9% |
| 柏林 | 1 | 3.4% |
| 托莱多 | 1 | 3.4% |
| 马拉喀什 | 1 | 3.4% |
+ 8 more answers
Random color · English
n = 30 · H = 2.02 bit · uniform baseline 4.91 bit
| Answer | Count | Share |
|---|---|---|
| blue | 18 | 60.0% |
| azure | 3 | 10.0% |
| turquoise | 3 | 10.0% |
| indigo | 2 | 6.7% |
| cerulean | 1 | 3.3% |
| purple | 1 | 3.3% |
| crimson | 1 | 3.3% |
| teal | 1 | 3.3% |
Random color · Chinese
n = 30 · H = 0.00 bit · uniform baseline 4.91 bit
| Answer | Count | Share |
|---|---|---|
| 蓝 | 30 | 100.0% |
Random letter · English
n = 30 · H = 1.97 bit · uniform baseline 4.70 bit
| Answer | Count | Share |
|---|---|---|
| q | 15 | 50.0% |
| k | 7 | 23.3% |
| m | 4 | 13.3% |
| g | 2 | 6.7% |
| z | 1 | 3.3% |
| j | 1 | 3.3% |
Random number 1-10 · English
n = 30 · H = 0.00 bit · uniform baseline 3.32 bit
| Answer | Count | Share |
|---|---|---|
| 7 | 30 | 100.0% |
Random number 1-10 · Chinese
n = 30 · H = 0.00 bit · uniform baseline 3.32 bit
| Answer | Count | Share |
|---|---|---|
| 7 | 30 | 100.0% |
Random number 1-100 · English
n = 30 · H = 0.00 bit · uniform baseline 6.64 bit
| Answer | Count | Share |
|---|---|---|
| 42 | 30 | 100.0% |
Random number 1-100 · Chinese
n = 30 · H = 0.00 bit · uniform baseline 6.64 bit
| Answer | Count | Share |
|---|---|---|
| 42 | 30 | 100.0% |
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Distributions: Tomáš Bruckner, "One Token Is Enough" (arXiv:2607.10252), official dataset Zenodo DOI 10.5281/zenodo.21278557, licensed CC-BY-4.0. Collected via OpenRouter at temperature 1.0 under the paper's fixed minimal one-word system prompt; answer keys are re-normalized with the checker's pipeline (color aliases, number words, coin h/t) so live probes are directly comparable.