AI Desk · Model Identity · Evidence object

Tokenizer signature tk_2729e470

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 Cohere · group A group.

Members
1
First observed
21 August 2026
Last observed
21 August 2026
Group
Cohere · group A

Models with this signature

The measured vector

Marginal prompt-token cost per string, as measured on Cohere: Command R7B (12-2024)
All 50 rows

English and whitespace

en-prose14
en-long15
spaces-203
spaces-603
tabs-206
newlines-205
mixed-ws6

Digits

digits-99
digits-1212
digits-3030
digits-sep12
float-long22

CJK

zh-common12
zh-long14
zh-rare18
ja-kana7
ja-kanji9
ko9

Other scripts

ru11
ar10
he9
hi20
th25
el12

Emoji

emoji-basic10
emoji-skin20
emoji-zwj-family11
emoji-zwj-x333
emoji-flags7
emoji-prof20

Rare Unicode

math32
boxdraw29
combining5
cjk-ext-b16
surrogates40
zalgo36
rtl-mix6

Code

py-code27
py-indent15
json28
html17
regex48
camel5
snake11

Repetition and encodings

rare-word-x525
repeat-tok40
base6434
hex16
url23
uuid36

Method: tokenizer fingerprinting, v1-50. Raw data: fingerprints.json · index.json · test-strings.json.