Seed-2.0-Mini Behavioral Fingerprint

How ByteDance Seed's Seed-2.0-Mini answers one-word probe questions at temperature 1.0 — random numbers, colors, animals, coin flips — measured over 431 valid samples in the open dataset of "One Token Is Enough" (arXiv:2607.10252).

Vendor

ByteDance Seed

Data generated

2026-07-08

Probe cells

15

Valid samples

431

Randomness score

34 / 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

24 / 30 answers

Favorite color

periwinkle

14 / 30 answers

Coin flip: heads

76%

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

AnswerCountShare
heads2376.7%
tails723.3%

Coin flip · Chinese

n = 11 · H = 0.85 bit · uniform baseline 1.00 bit

AnswerCountShare
heads872.7%
tails327.3%

Favorite number · English

n = 30 · H = 0.00 bit · uniform baseline 13.29 bit

AnswerCountShare
730100.0%

Favorite number · Chinese

n = 30 · H = 0.00 bit · uniform baseline 13.29 bit

AnswerCountShare
730100.0%

Random animal · English

n = 30 · H = 1.35 bit · uniform baseline 5.64 bit

AnswerCountShare
platypus2066.7%
quokka620.0%
axolotl310.0%
kaka13.3%

Random animal · Chinese

n = 30 · H = 2.92 bit · uniform baseline 5.64 bit

AnswerCountShare
考拉1136.7%
鸭嘴兽413.3%
海狸310.0%
海獭310.0%
树懒26.7%
企鹅26.7%
章鱼13.3%
针鼹13.3%

+ 3 more answers

Random city · English

n = 30 · H = 3.65 bit · uniform baseline 5.64 bit

AnswerCountShare
lisbon723.3%
portland413.3%
edinburgh26.7%
prague26.7%
paris26.7%
vancouver26.7%
vienna26.7%
bordeaux13.3%

+ 8 more answers

Random city · Chinese

n = 30 · H = 2.47 bit · uniform baseline 5.64 bit

AnswerCountShare
巴黎1136.7%
成都723.3%
东京620.0%
维也纳13.3%
大阪13.3%
科隆13.3%
大连13.3%
武汉13.3%

+ 1 more answers

Random color · English

n = 30 · H = 2.00 bit · uniform baseline 4.91 bit

AnswerCountShare
periwinkle1446.7%
cerulean826.7%
teal413.3%
crimson26.7%
turquoise13.3%
lavender13.3%

Random color · Chinese

n = 30 · H = 2.44 bit · uniform baseline 4.91 bit

AnswerCountShare
天蓝930.0%
靛蓝826.7%
藏青516.7%
蔚蓝413.3%
洋红26.7%
天青13.3%
琥珀13.3%

Random letter · English

n = 30 · H = 1.96 bit · uniform baseline 4.70 bit

AnswerCountShare
k1446.7%
q723.3%
m620.0%
x13.3%
g13.3%
b13.3%

Random number 1-10 · English

n = 30 · H = 0.00 bit · uniform baseline 3.32 bit

AnswerCountShare
730100.0%

Random number 1-10 · Chinese

n = 30 · H = 0.00 bit · uniform baseline 3.32 bit

AnswerCountShare
730100.0%

Random number 1-100 · English

n = 30 · H = 0.72 bit · uniform baseline 6.64 bit

AnswerCountShare
422480.0%
47620.0%

Random number 1-100 · Chinese

n = 30 · H = 1.18 bit · uniform baseline 6.64 bit

AnswerCountShare
422170.0%
47723.3%
5713.3%
6713.3%

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Data source & license

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.

Paper on arXivDataset on ZenodoCC-BY-4.0 license

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