MiMo-V2.5 Behavioral Fingerprint
How Xiaomi's MiMo-V2.5 answers one-word probe questions at temperature 1.0 — random numbers, colors, animals, coin flips — measured over 32 valid samples in the open dataset of "One Token Is Enough" (arXiv:2607.10252).
Vendor
Xiaomi
Data generated
2026-07-08
Probe cells
3
Valid samples
32
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)
—
Not covered
Favorite color
teal
4 / 12 answers
Coin flip: heads
—
Not covered
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.
Random city · Chinese
n = 10 · H = 1.96 bit · uniform baseline 5.64 bit
| Answer | Count | Share |
|---|---|---|
| 北京 | 5 | 50.0% |
| 东京 | 2 | 20.0% |
| 柏林 | 1 | 10.0% |
| 芝加哥 | 1 | 10.0% |
| 上海 | 1 | 10.0% |
Random color · English
n = 12 · H = 2.52 bit · uniform baseline 4.91 bit
| Answer | Count | Share |
|---|---|---|
| teal | 4 | 33.3% |
| coral | 3 | 25.0% |
| crimson | 1 | 8.3% |
| turquoise | 1 | 8.3% |
| magenta | 1 | 8.3% |
| blue | 1 | 8.3% |
| red | 1 | 8.3% |
Random letter · English
n = 10 · H = 1.97 bit · uniform baseline 4.70 bit
| Answer | Count | Share |
|---|---|---|
| k | 3 | 30.0% |
| q | 3 | 30.0% |
| x | 2 | 20.0% |
| g | 2 | 20.0% |
Want to verify your API really serves MiMo-V2.5?
Point the free fingerprint checker at your endpoint: it samples the same probe questions from your browser and compares the distributions against this reference. Your API key never leaves your browser.
Verify your endpointData 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.