Google: Gemini 3 Flash Preview (batch)

google/gemini-3-flash-preview:batch · GoogleDeclared and measured agree

Tokenizer lineage (measured): Gemini
Evidence confidence: High
Declared tokenizer tag: Gemini
Entered catalogue: 17 December 2025
Last tested: Not yet measured
Measurement: Variant: inherits its base model’s measurement

Evidence

✓ inherited from google/gemini-3-flash-preview: a serving variant shares its base model's tokenizer

Compare with Google: Gemini 3 Flash Preview

This entry is a serving variant of Google: Gemini 3 Flash Preview. A variant shares its base model's tokenizer by construction, so the measurement lives on the base record and this page inherits it.

Identity statement

Google: Gemini 3 Flash Preview (batch) is Google's model. Its measured tokenizer sits with the Gemini group, which is evidence that it builds on the Gemini tokenizer. Tokenizer reuse is normal engineering, open vocabularies travel between labs, and this says nothing against Google's authorship of the model itself.

Evidence stack

Signals of different kinds, weighed together

Signal	Result	Reference
Tokenizer signature	Not measured	–
API surface	Identical contract to 1 other entry	api_bf8baac5
Context and output	1,048,576 context · 65,536 max output	declared
Reasoning contract	Optional · efforts high, medium, low, minimal · default medium	declared
Serving providers observed	None recorded yet	–

Declared record

What the catalogue claims about this model

Gemini 3 Flash Preview is a high speed, high value thinking model designed for agentic workflows, multi turn chat, and coding assistance. It delivers near Pro level reasoning and tool...

Modalities: text+image+file+audio+video->text
Declared tokenizer: Gemini
Prompt price: $0.25 / M tokens
Completion price: $1.50 / M tokens

Supported parameters

include_reasoningmax_tokensreasoningreasoning_effortresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_p

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

Catalogue entry

History

Every observation, kept as taken

17 December 2025Enters the OpenRouter catalogue declared as Gemini.

Cite this page as the evidence record for Google: Gemini 3 Flash Preview (batch): the URL is stable, measurements are dated, and revisions append to the history above. Method: tokenizer fingerprinting, v1, 50 strings.