AI Desk · Model Identity · Evidence object
Tokenizer signature tk_79cd40d1
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 Nova · group B group.
- Members
- 1
- First observed
- 3 September 2026
- Last observed
- 3 September 2026
- Group
- Nova · group B
Models with this signature
The measured vector
Marginal prompt-token cost per string, as measured on Amazon: Nova Premier 1.0All 50 rows
English and whitespace
en-prose13
en-long15
spaces-204
spaces-606
tabs-2022
newlines-2022
mixed-ws9
Digits
digits-910
digits-1213
digits-3031
digits-sep13
float-long23
CJK
zh-common17
zh-long24
zh-rare28
ja-kana9
ja-kanji13
ko19
Other scripts
ru14
ar10
he14
hi11
th22
el17
Emoji
emoji-basic5
emoji-skin14
emoji-zwj-family20
emoji-zwj-x358
emoji-flags24
emoji-prof30
Rare Unicode
math31
boxdraw40
combining9
cjk-ext-b17
surrogates55
zalgo34
rtl-mix8
Code
py-code29
py-indent19
json28
html16
regex53
camel6
snake11
Repetition and encodings
rare-word-x520
repeat-tok40
base6436
hex16
url23
uuid37
Method: tokenizer fingerprinting, v1-50.