AI Desk · AI Fingerprinting · Evidence object
Tokenizer signature tk_133b086c
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 Z.ai · group A group.
- Members
- 9
- First observed
- 20 August 2026
- Last observed
- 5 October 2026
- Group
- Z.ai · group A
Models with this signature
Ox Alphastealth/ox-alphaZ.aiZ.ai: GLM 4.7 Flashz-ai/glm-4.7-flashZ.aiZ.ai: GLM 5z-ai/glm-5Z.aiZ.ai: GLM 5 Turboz-ai/glm-5-turboZ.aiZ.ai: GLM 5.1z-ai/glm-5.1Z.aiZ.ai: GLM 5.3z-ai/glm-5.3Z.aiZ.ai: GLM 5.3 Flashz-ai/glm-5.3-flashZ.aiZ.ai: GLM 5.3 FlashXz-ai/glm-5.3-flashxZ.aiZ.ai: GLM 5.3 Primez-ai/glm-5.3-primeZ.ai
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.
The measured vector
Marginal prompt-token cost per string, as measured on Ox AlphaAll 50 rows
English and whitespace
en-prose14
en-long16
spaces-203
spaces-603
tabs-203
newlines-204
mixed-ws5
Digits
digits-95
digits-127
digits-3010
digits-sep9
float-long14
CJK
zh-common9
zh-long10
zh-rare18
ja-kana10
ja-kanji14
ko17
Other scripts
ru13
ar13
he24
hi27
th24
el14
Emoji
emoji-basic5
emoji-skin10
emoji-zwj-family7
emoji-zwj-x321
emoji-flags24
emoji-prof15
Rare Unicode
math27
boxdraw28
combining10
cjk-ext-b13
surrogates40
zalgo22
rtl-mix8
Code
py-code25
py-indent15
json21
html16
regex44
camel5
snake6
Repetition and encodings
rare-word-x531
repeat-tok22
base6435
hex14
url17
uuid28
Method: tokenizer fingerprinting, v1-50.