DeepSeek V4 Flash Behavioral Fingerprint
How DeepSeek's DeepSeek V4 Flash answers one-word probe questions at temperature 1.0 — random numbers, colors, animals, coin flips — measured over 437 valid samples in the open dataset of "One Token Is Enough" (arXiv:2607.10252).
Vendor
DeepSeek
Data generated
2026-07-08
Probe cells
15
Valid samples
437
Randomness score
43 / 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)
47
15 / 29 answers
Favorite color
blue
17 / 29 answers
Coin flip: heads
59%
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 = 29 · H = 0.96 bit · uniform baseline 1.00 bit
| Answer | Count | Share |
|---|---|---|
| heads | 18 | 62.1% |
| tails | 11 | 37.9% |
Coin flip · Chinese
n = 30 · H = 0.99 bit · uniform baseline 1.00 bit
| Answer | Count | Share |
|---|---|---|
| heads | 17 | 56.7% |
| tails | 13 | 43.3% |
Favorite number · English
n = 30 · H = 0.98 bit · uniform baseline 13.29 bit
| Answer | Count | Share |
|---|---|---|
| 7 | 22 | 73.3% |
| 42 | 7 | 23.3% |
| 5 | 1 | 3.3% |
Favorite number · Chinese
n = 29 · H = 1.40 bit · uniform baseline 13.29 bit
| Answer | Count | Share |
|---|---|---|
| 7 | 19 | 65.5% |
| 42 | 7 | 24.1% |
| 8 | 1 | 3.4% |
| 11 | 1 | 3.4% |
| 17 | 1 | 3.4% |
Random animal · English
n = 30 · H = 3.24 bit · uniform baseline 5.64 bit
| Answer | Count | Share |
|---|---|---|
| elephant | 6 | 20.0% |
| cat | 6 | 20.0% |
| giraffe | 3 | 10.0% |
| penguin | 3 | 10.0% |
| rabbit | 3 | 10.0% |
| dog | 3 | 10.0% |
| kangaroo | 1 | 3.3% |
| fox | 1 | 3.3% |
+ 4 more answers
Random animal · Chinese
n = 29 · H = 3.09 bit · uniform baseline 5.64 bit
| Answer | Count | Share |
|---|---|---|
| 大象 | 7 | 24.1% |
| 猫 | 6 | 20.7% |
| 狗 | 4 | 13.8% |
| 老虎 | 2 | 6.9% |
| 长颈鹿 | 2 | 6.9% |
| 马 | 2 | 6.9% |
| 袋鼠 | 2 | 6.9% |
| 熊猫 | 1 | 3.4% |
+ 3 more answers
Random city · English
n = 29 · H = 3.46 bit · uniform baseline 5.64 bit
| Answer | Count | Share |
|---|---|---|
| tokyo | 7 | 24.1% |
| mumbai | 4 | 13.8% |
| berlin | 3 | 10.3% |
| zurich | 2 | 6.9% |
| rome | 2 | 6.9% |
| bangkok | 2 | 6.9% |
| paris | 2 | 6.9% |
| stockholm | 1 | 3.4% |
+ 6 more answers
Random city · Chinese
n = 29 · H = 2.04 bit · uniform baseline 5.64 bit
| Answer | Count | Share |
|---|---|---|
| 东京 | 18 | 62.1% |
| 上海 | 3 | 10.3% |
| 伦敦 | 2 | 6.9% |
| 巴黎 | 1 | 3.4% |
| 大阪 | 1 | 3.4% |
| 济州 | 1 | 3.4% |
| 里约热内卢 | 1 | 3.4% |
| 香港 | 1 | 3.4% |
+ 1 more answers
Random color · English
n = 29 · H = 1.98 bit · uniform baseline 4.91 bit
| Answer | Count | Share |
|---|---|---|
| blue | 17 | 58.6% |
| red | 4 | 13.8% |
| green | 2 | 6.9% |
| orange | 2 | 6.9% |
| yellow | 2 | 6.9% |
| black | 1 | 3.4% |
| teal | 1 | 3.4% |
Random color · Chinese
n = 29 · H = 0.93 bit · uniform baseline 4.91 bit
| Answer | Count | Share |
|---|---|---|
| 蓝 | 24 | 82.8% |
| 红 | 2 | 6.9% |
| 紫 | 2 | 6.9% |
| 橙 | 1 | 3.4% |
Random letter · English
n = 26 · H = 3.07 bit · uniform baseline 4.70 bit
| Answer | Count | Share |
|---|---|---|
| e | 7 | 26.9% |
| q | 4 | 15.4% |
| g | 4 | 15.4% |
| x | 3 | 11.5% |
| m | 2 | 7.7% |
| j | 1 | 3.8% |
| k | 1 | 3.8% |
| f | 1 | 3.8% |
+ 3 more answers
Random number 1-10 · English
n = 29 · H = 0.22 bit · uniform baseline 3.32 bit
| Answer | Count | Share |
|---|---|---|
| 7 | 28 | 96.6% |
| 5 | 1 | 3.4% |
Random number 1-10 · Chinese
n = 30 · H = 0.97 bit · uniform baseline 3.32 bit
| Answer | Count | Share |
|---|---|---|
| 7 | 25 | 83.3% |
| 5 | 2 | 6.7% |
| 6 | 1 | 3.3% |
| 8 | 1 | 3.3% |
| 9 | 1 | 3.3% |
Random number 1-100 · English
n = 29 · H = 2.03 bit · uniform baseline 6.64 bit
| Answer | Count | Share |
|---|---|---|
| 47 | 15 | 51.7% |
| 7 | 6 | 20.7% |
| 42 | 4 | 13.8% |
| 37 | 1 | 3.4% |
| 73 | 1 | 3.4% |
| 87 | 1 | 3.4% |
| 92 | 1 | 3.4% |
Random number 1-100 · Chinese
n = 30 · H = 1.76 bit · uniform baseline 6.64 bit
| Answer | Count | Share |
|---|---|---|
| 47 | 16 | 53.3% |
| 42 | 9 | 30.0% |
| 87 | 2 | 6.7% |
| 23 | 1 | 3.3% |
| 37 | 1 | 3.3% |
| 85 | 1 | 3.3% |
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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.