Mistral Medium 3.1 Behavioral Fingerprint
How Mistral's Mistral Medium 3.1 answers one-word probe questions at temperature 1.0 — random numbers, colors, animals, coin flips — measured over 449 valid samples in the open dataset of "One Token Is Enough" (arXiv:2607.10252).
Vendor
Mistral
Data generated
2026-07-08
Probe cells
15
Valid samples
449
Randomness score
15 / 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
20 / 30 answers
Favorite color
turquoise
21 / 30 answers
Coin flip: heads
7%
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 = 0.57 bit · uniform baseline 1.00 bit
| Answer | Count | Share |
|---|---|---|
| tails | 26 | 86.7% |
| heads | 4 | 13.3% |
Coin flip · Chinese
n = 30 · H = 0.00 bit · uniform baseline 1.00 bit
| Answer | Count | Share |
|---|---|---|
| tails | 30 | 100.0% |
Favorite number · English
n = 30 · H = 0.00 bit · uniform baseline 13.29 bit
| Answer | Count | Share |
|---|---|---|
| 7 | 30 | 100.0% |
Favorite number · Chinese
n = 30 · H = 0.00 bit · uniform baseline 13.29 bit
| Answer | Count | Share |
|---|---|---|
| 7 | 30 | 100.0% |
Random animal · English
n = 30 · H = 0.77 bit · uniform baseline 5.64 bit
| Answer | Count | Share |
|---|---|---|
| giraffe | 25 | 83.3% |
| koala | 4 | 13.3% |
| kangaroo | 1 | 3.3% |
Random animal · Chinese
n = 30 · H = 0.78 bit · uniform baseline 5.64 bit
| Answer | Count | Share |
|---|---|---|
| 长颈鹿 | 23 | 76.7% |
| 猫头鹰 | 7 | 23.3% |
Random city · English
n = 29 · H = 1.00 bit · uniform baseline 5.64 bit
| Answer | Count | Share |
|---|---|---|
| oslo | 21 | 72.4% |
| osaka | 7 | 24.1% |
| marseille | 1 | 3.4% |
Random city · Chinese
n = 30 · H = 0.47 bit · uniform baseline 5.64 bit
| Answer | Count | Share |
|---|---|---|
| 上海 | 27 | 90.0% |
| 成都 | 3 | 10.0% |
Random color · English
n = 30 · H = 1.31 bit · uniform baseline 4.91 bit
| Answer | Count | Share |
|---|---|---|
| turquoise | 21 | 70.0% |
| teal | 5 | 16.7% |
| cyan | 2 | 6.7% |
| cerulean | 2 | 6.7% |
Random color · Chinese
n = 30 · H = 1.66 bit · uniform baseline 4.91 bit
| Answer | Count | Share |
|---|---|---|
| 紫 | 16 | 53.3% |
| 蓝 | 8 | 26.7% |
| 橙 | 3 | 10.0% |
| 紫罗兰 | 3 | 10.0% |
Random letter · English
n = 30 · H = 1.21 bit · uniform baseline 4.70 bit
| Answer | Count | Share |
|---|---|---|
| k | 20 | 66.7% |
| q | 7 | 23.3% |
| m | 3 | 10.0% |
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 = 1.37 bit · uniform baseline 6.64 bit
| Answer | Count | Share |
|---|---|---|
| 47 | 20 | 66.7% |
| 73 | 5 | 16.7% |
| 57 | 4 | 13.3% |
| 37 | 1 | 3.3% |
Random number 1-100 · Chinese
n = 30 · H = 0.77 bit · uniform baseline 6.64 bit
| Answer | Count | Share |
|---|---|---|
| 47 | 25 | 83.3% |
| 42 | 4 | 13.3% |
| 73 | 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.