IBM: Granite 4.2 8B

ibm-granite/granite-4.2-8b · IBMNot yet established

Declared family: Unknown
Evidence confidence: Unknown
Declared tokenizer tag: Other
Entered catalogue: 31 August 2026
Last tested: 3 September 2026
Measurement: Measured

Identity statement

IBM: Granite 4.2 8B 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_b6cc7610
API surface	No other entry shares this exact contract	api_8e781ad5
Context and output	131,072 context · 117,964 max output	declared
Reasoning contract	Optional · efforts high, low, none · default high	declared
Serving providers observed	DeepInfra	measured 3 September 2026

Closest measured models

Agreement across the mutually clean test strings

IBM: Granite 4.0 Microibm-granite/granite-4.0-h-micro35/50 · 70%IBM: Granite 4.1 8Bibm-granite/granite-4.1-8b35/50 · 70%Microsoft: Phi 4microsoft/phi-435/50 · 70%OpenAI: GPT-3.5 Turboopenai/gpt-3.5-turbo35/50 · 70%OpenAI: GPT-3.5 Turbo Instructopenai/gpt-3.5-turbo-instruct26/41 · 63%Reka Flash 3rekaai/reka-flash-326/46 · 57%

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-long16

spaces-203

spaces-603

tabs-204

newlines-205

mixed-ws5

Digits

digits-93

digits-125

digits-3015

digits-sep7

float-long10

CJK

zh-common18

zh-long25

zh-rare23

ja-kana14

ja-kanji17

ko19

Other scripts

ru16

ar25

he24

hi35

th26

el29

Emoji

emoji-basic10

emoji-skin30

emoji-zwj-family18

emoji-zwj-x354

emoji-flags24

emoji-prof29

Rare Unicode

math32

boxdraw28

combining14

cjk-ext-b13

surrogates39

zalgo36

rtl-mix11

Code

py-code28

py-indent18

json23

html17

regex47

camel5

snake11

Repetition and encodings

rare-word-x531

repeat-tok22

base6435

hex11

url21

uuid27

An x marks a row excluded as corrupt (caching or provider interference detected during measurement). Overhead subtracted: 15 prompt tokens.

Declared record

What the catalogue claims about this model

Granite 4.2 8B is a dense reasoning model from IBM. It is suited for mathematics, code generation, multilingual dialogue, and agentic workflows that need multi-step reasoning. It supports full, low-effort,...

Modalities: text->text
Declared tokenizer: Other
Prompt price: $0.06 / M tokens
Completion price: $0.25 / M tokens

Supported parameters

frequency_penaltyinclude_reasoninglogit_biaslogprobsmax_tokensmin_ppresence_penaltyreasoningreasoning_effortrepetition_penaltyresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_ktop_logprobstop_p

defaults: {"temperature":1,"top_p":0.95}

Catalogue entry Weights on Hugging Face

History

Every observation, kept as taken

31 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 IBM: Granite 4.2 8B: the URL is stable, measurements are dated, and revisions append to the history above. Method: tokenizer fingerprinting, v1, 50 strings.