Google: Gemini 3 Flash Preview (batch)

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

Tokenizer lineage (measured): Gemini
Declared tokenizer tag: Gemini
Entered catalogue: 17 December 2025
Measurement: Variant: inherits its base model’s measurement
Evidence confidence: High

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

Evidence

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

Compare with Google: Gemini 3 Flash Preview

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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.

What we checked

Four different kinds of evidence, and what each one showed

We checked	What we found	Where it came from
How it counts tokens	Not measured yet	we measured it
How its API is set up	Set up identically to 1 other listing, field for field	api_bf8baac5
How much it can read and write	Reads up to 1,048,576 tokens at once, writes up to 65,536	its own listing
Whether it thinks before answering	Reasons when asked to, at high, medium, low, minimal, medium by default	its own listing

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.