Tencent: Hy3 preview

tencent/hy3-preview · TencentTokenizer lineage measured
Tokenizer group (measured)
Tencent
Evidence confidence
High
Why high: an exact fingerprint shared with 3 models.
Declared tokenizer tag
Other
Entered catalogue
22 April 2026
Last tested
21 August 2026
Measurement
Measured
Evidence
  • exact tokenizer signature shared with 3 models

Identity statement

Tencent: Hy3 preview is Tencent's model, and its measured tokenizer sits in Tencent's own signature group alongside its sibling models. No other maker's measured model shares it so far.

Evidence stack

Signals of different kinds, weighed together
SignalResultReference
Tokenizer signatureExact match with 3 other modelstk_2b541395
API surfaceNo other entry shares this exact contractapi_f640ddc8
Context and output262,144 context · – max outputdeclared
Reasoning contractOptional · efforts high, low, none · default highdeclared
Serving providers observedGMICloudmeasured 21 August 2026

Shares this fingerprint

Exact signature first; template-boundary shifts of the same signature beneath

Closest measured models

Agreement across the mutually clean test strings

Click a row to open the full comparison.

The measured fingerprint

Marginal prompt-token cost of each test string, grouped by script
All 50 rows

English and whitespace

en-prose14
en-long17
spaces-203
spaces-603
tabs-204
newlines-204
mixed-ws7

Digits

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

CJK

zh-common8
zh-long10
zh-rare18
ja-kana11
ja-kanji12
ko13

Other scripts

ru16
ar15
he16
hi24
th17
el22

Emoji

emoji-basic10
emoji-skin25
emoji-zwj-family11
emoji-zwj-x333
emoji-flags24
emoji-prof23

Rare Unicode

math26
boxdraw30
combining10
cjk-ext-b16
surrogates40
zalgo36
rtl-mix8

Code

py-code25
py-indent15
json20
html16
regex45
camel6
snake6

Repetition and encodings

rare-word-x531
repeat-tok41
base6435
hex12
url17
uuid27

An x marks a row excluded as corrupt (caching or provider interference detected during measurement). Overhead subtracted: 12 prompt tokens.

Declared record

What the catalogue claims about this model

Hy3 preview is a high-efficiency Mixture-of-Experts model from Tencent designed for agentic workflows and production use. It supports configurable reasoning levels across disabled, low, and high modes, allowing it to...

Modalities
text->text
Declared tokenizer
Other
Prompt price
$0.18 / M tokens
Completion price
$0.60 / M tokens

Supported parameters

include_reasoningmax_tokensreasoningreasoning_effortseedtemperaturetool_choicetoolstop_p

defaults: {"temperature":0.9,"top_p":1,"top_k":null,"frequency_penalty":null,"presence_penalty":null,"repetition_penalty":null}

Catalogue entryWeights on Hugging Face

History

Every observation, kept as taken
  • 22 April 2026Enters the OpenRouter catalogue with no declared family.
  • 21 August 2026Fingerprinted in the YFarmX catalogue sweep · 50 of 50 strings measured clean.
  • 21 August 2026YFarmX assessment: consistent with the Tencent family, high confidence.

Cite this page as the evidence record for Tencent: Hy3 preview: the URL is stable, measurements are dated, and revisions append to the history above. Method: tokenizer fingerprinting, v1, 50 strings. The raw data behind every figure is on the data page.