AI Desk · Model Identity · Evidence object

Tokenizer signature tk_869dc1cf

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 DeepSeek group.

Members
2
First observed
21 August 2026
Last observed
21 August 2026
Group
DeepSeek

Models with this signature

Template variants of the same tokenizer

These signatures differ from this one by a uniform one-token shift on the affected strings: the same vocabulary behind a different chat template.

tk_73c4f0dc · 10 models

The measured vector

Marginal prompt-token cost per string, as measured on DeepSeek: DeepSeek V3.1
All 50 rows

English and whitespace

en-prose14
en-long16
spaces-203
spaces-603
tabs-204
newlines-204
mixed-ws7

Digits

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

CJK

zh-common9
zh-long10
zh-rare18
ja-kana9
ja-kanji11
ko13

Other scripts

ru13
ar10
he14
hi18
th11
el16

Emoji

emoji-basic10
emoji-skin14
emoji-zwj-family11
emoji-zwj-x333
emoji-flags16
emoji-prof19

Rare Unicode

math22
boxdraw27
combining10
cjk-ext-b16
surrogates33
zalgo36
rtl-mix6

Code

py-code25
py-indent15
json20
html16
regex47
camel7
snake8

Repetition and encodings

rare-word-x525
repeat-tok40
base6434
hex12
url17
uuid27

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