Tencent: Hy4 preview
tencent/hy4-preview · TencentNot yet established- Declared family
- Unknown
- Evidence confidence
- Unknown
- Declared tokenizer tag
- Other
- Entered catalogue
- 28 August 2026
- Last tested
- 3 September 2026
- Measurement
- Measured
Identity statement
Tencent: Hy4 preview has a clean measured fingerprint that currently sits alone: no other measured model shares its signature.
Evidence stack
Signals of different kinds, weighed together| Signal | Result | Reference |
|---|---|---|
| Tokenizer signature | Clean measurement; no exact match yet | tk_5e7942ae |
| API surface | No other entry shares this exact contract | api_6ec17f5e |
| Context and output | 1,048,576 context · 64,000 max output | declared |
| Reasoning contract | Optional · efforts high, low, none · default high | declared |
| Serving providers observed | Tencent | measured 3 September 2026 |
Closest measured models
Agreement across the mutually clean test stringsDeepSeek: DeepSeek V4 Pro 0813deepseek/deepseek-v4-pro-081328/50 · 56%DeepSeek: DeepSeek V4 Flash Vision Expdeepseek/deepseek-v4-flash-vision-exp28/50 · 56%Tencent: Hy-MT2-1.8Btencent/hy-mt2-1.8b28/50 · 56%DeepSeek: DeepSeek V4 Flash 0731deepseek/deepseek-v4-flash-073128/50 · 56%DeepSeek: DeepSeek V4 Flash 0423deepseek/deepseek-v4-flash28/50 · 56%Tencent: Hy-MT2-30B-A3Btencent/hy-mt2-30b-a3b28/50 · 56%
Click a row to open the full comparison.
The measured fingerprint
Marginal prompt-token cost of each test string, grouped by scriptAll 50 rows
English and whitespace
en-prose14
en-long17
spaces-204
spaces-606
tabs-2011
newlines-207
mixed-ws7
Digits
digits-93
digits-124
digits-3010
digits-sep7
float-long9
CJK
zh-common8
zh-long10
zh-rare18
ja-kana10
ja-kanji11
ko12
Other scripts
ru13
ar12
he14
hi17
th14
el20
Emoji
emoji-basic10
emoji-skin14
emoji-zwj-family11
emoji-zwj-x333
emoji-flags16
emoji-prof19
Rare Unicode
math27
boxdraw28
combining10
cjk-ext-b16
surrogates41
zalgo36
rtl-mix7
Code
py-code25
py-indent16
json20
html16
regex46
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: 21 prompt tokens.
Declared record
What the catalogue claims about this modelTencent: Hy4 preview is a mixture-of-experts model from Tencent, with 49B active parameters out of 770B total. It is designed for coding agents, complex tool-use workflows, and productivity tasks that...
- Modalities
- text->text
- Declared tokenizer
- Other
- Prompt price
- $0.83 / M tokens
- Completion price
- $2.50 / M tokens
Supported parameters
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputstemperaturetool_choicetools
defaults: {}
History
Every observation, kept as taken- 28 August 2026Enters the OpenRouter catalogue with no declared family.
- 3 September 2026Fingerprinted in the YFarmX catalogue sweep · 50 of 50 strings measured clean.
Cite this page as the evidence record for Tencent: Hy4 preview: the URL is stable, measurements are dated, and revisions append to the history above. Method: tokenizer fingerprinting, v1, 50 strings.
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