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Gemini 3 Flash Preview

Gemini 3 Flash Preview is a high speed, high value thinking model designed for agentic workflows, multi turn chat, and coding assistance.

Try Gemini 3 Flash Preview See alternatives

At a glance

Input / 1M: $0.50
Output / 1M: $3
Context: 1.05M
Max output: 66K
Intelligence: 26.3
Released: Dec 2025

Text inputImage inputFile inputAudio inputVideo inputReasoningTool calling

Pricing

Gemini 3 Flash Preview API pricing

Per-token rates, plus what common tasks actually cost.

Input tokensPer 1M tokens	$0.50
Output tokensPer 1M tokens	$3
Cached input (read)Per 1M tokens	$0.05
Cache writePer 1M tokens	$0.08
Web searchPer request	$0.014

Chat message

2K in, 500 out

$2.50

per 1,000 requests

Coding task

30K in, 4K out

$27

per 1,000 requests

Long document summary

150K in, 2K out

$81

per 1,000 requests

Benchmarks

Gemini 3 Flash Preview benchmark scores

Independent scores from Artificial Analysis. Higher is better.

Intelligence index

26.3

Coding index

Not available

Agentic index

Not available

Specs

Context window and capabilities

What it can read, what it can write, and which API features it supports.

Context window: 1.05M tokens
Max output: 66K tokens
Input types: Audio, File, Image, Text, Video
Output types: Text
Reasoning effort: High, Medium, Low, Minimal
Release date: December 17, 2025

Tool calling
Structured outputs
JSON mode
Reasoning
Temperature
Stop sequences
Deterministic seed
Verbosity control

Compare

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Alternatives

Gemini 3 Flash Preview alternatives

All alternatives

Similar models worth considering, and where each one has the edge.

Moonshot AI

Kimi K2.6

1.2x cheaper outputHigher intelligence scoreNewer release

View Kimi K2.6

Qwen

Qwen3.6 Plus

1.5x cheaper outputHigher intelligence scoreNewer release

View Qwen3.6 Plus

Z.ai

GLM 5 Turbo

Higher intelligence scoreNewer release

View GLM 5 Turbo

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FAQ

Frequently asked questions

How much does Gemini 3 Flash Preview cost?

Gemini 3 Flash Preview costs $0.50 per 1M input tokens and $3 per 1M output tokens through the API. A typical chat message costs about $2.50 per 1,000 messages.

What is the context window of Gemini 3 Flash Preview?

Gemini 3 Flash Preview accepts up to 1.05M tokens of input and can write up to 66K tokens in a single response.

What is the best alternative to Gemini 3 Flash Preview?

Kimi K2.6 from Moonshot AI is a strong alternative. It offers: 1.2x cheaper output, higher intelligence score, newer release.

Can I use Gemini 3 Flash Preview alongside other models?

Yes. Shortcut Chat sends one prompt to Gemini 3 Flash Preview and any other models you pick at the same time, so you can compare answers side by side.

Try Gemini 3 Flash Preview next to every other model.

Use Gemini 3 Flash Preview alongside all the other models. Use one at a time, or multiple together. Get the best answer from every AI.

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