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AI Desk · AI Fingerprinting · Evidence object

Tokenizer signature tk_e242e95c

An exact tokenizer signature: every model listed below returned the same marginal prompt-token count on all 50 test strings. Sharing a signature is strong evidence of a shared vocabulary. This signature sits in the Mistral · group D group.

Members
1
First observed
8 October 2026
Last observed
8 October 2026
Group
Mistral · group D

Models with this signature

The measured vector

Marginal prompt-token cost per string, as measured on Mistral: Mistral Large 4
All 50 rows

English and whitespace

en-prose14
en-long18
spaces-203
spaces-603
tabs-205
newlines-204
mixed-ws7

Digits

digits-93
digits-124
digits-3010
digits-sep7
float-long9

CJK

zh-common12
zh-long16
zh-rare19
ja-kana11
ja-kanji13
ko11

Other scripts

ru11
ar9
he9
hi11
th18
el14

Emoji

emoji-basic10
emoji-skin20
emoji-zwj-family11
emoji-zwj-x333
emoji-flags16
emoji-prof21

Rare Unicode

math27
boxdraw16
combining11
cjk-ext-b13
surrogates41
zalgo34
rtl-mix5

Code

py-code25
py-indent15
json20
html16
regex43
camel6
snake6

Repetition and encodings

rare-word-x536
repeat-tok22
base6433
hex11
url17
uuid27

Method: tokenizer fingerprinting, v1-50.