AI Desk · Model Identity · Evidence object

Tokenizer signature tk_865d84ce

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 Upstage group.

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

Models with this signature

The measured vector

Marginal prompt-token cost per string, as measured on Upstage: Solar Pro 3
All 50 rows

English and whitespace

en-prose14
en-long15
spaces-203
spaces-603
tabs-204
newlines-204
mixed-ws6

Digits

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

CJK

zh-common12
zh-long17
zh-rare18
ja-kana8
ja-kanji10
ko7

Other scripts

ru14
ar12
he25
hi15
th14
el13

Emoji

emoji-basic10
emoji-skin15
emoji-zwj-family11
emoji-zwj-x333
emoji-flags16
emoji-prof19

Rare Unicode

math21
boxdraw26
combining9
cjk-ext-b16
surrogates37
zalgo35
rtl-mix10

Code

py-code25
py-indent15
json25
html17
regex41
camel5
snake6

Repetition and encodings

rare-word-x526
repeat-tok40
base6432
hex16
url19
uuid36

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