Context Window
GooglefastVisionTool use

Gemini 3 Flash Preview (batch)

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...

1.0M context·~786K words·66K max output
View context detailsCompare with Jp Anthropic Claude Sonnet 4 6
Context window1.0Mtokens
Max output66Ktokens

Context window

This model accepts 1.0M tokens in one request (~786K words of text).

Context window size1.0M tokens
4K32K128K1M10M

What fits in one request

  • Short document
    About 1,500 words of text
    Fits
  • Long document
    About 37K words of text
    Fits
  • Small codebase
    About 150K words of text
    Fits
  • Full novel
    About 375K words of text
    Fits

Specifications

Context size, pricing, and release info in one place.

Context window
1,048,576 tokens (1.0M)
Max output tokens
65,535 tokens (66K)
Speed tier
fast
Provider
Google
Release date
Dec 2025

Capabilities

See which features this model supports, such as vision, tools, and streaming.

Supported (5)
Vision
Supported
Tool use
Supported
Function calling
Supported
Extended thinking
Supported
Streaming
Supported
Not supported (3)
Web search
Not supported
Batch API
Not supported
Prompt caching
Not supported

Best for

Jump to a guide or ranking that matches each workload.

ReasoningAI agentsMultimodalLong documentsRAGChatbots

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Frequently asked questions

Short answers about context size and how this model behaves.

Gemini 3 Flash Preview (batch) has a context window of 1M tokens (1,048,576 tokens). This million-token window can process entire codebases, long legal documents, or book-length texts in a single pass.

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Example: a multi-turn chat session

Without Mem0~128K tokens sent
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Repeated info
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