How much does Gemini 3.1 Flash Lite Preview cost?

Gemini 3.1 Flash Lite Preview costs $0.25 per million input tokens and $1.50 per million output tokens on standard pricing. A workload of 20M input and 5M output tokens a month is about $13.

What is the context length of Gemini 3.1 Flash Lite Preview?

Gemini 3.1 Flash Lite Preview accepts up to 1,048,576 tokens (1M) of input and can return up to 65,536 tokens in one response.

Does Gemini 3.1 Flash Lite Preview support tool calling and structured outputs?

Yes, Gemini 3.1 Flash Lite Preview supports function/tool calling and structured (JSON) outputs. Supported tools: Function calling, Structured outputs, JSON mode, Reasoning, Deterministic seed, Prompt caching.

What inputs and outputs does Gemini 3.1 Flash Lite Preview support?

Gemini 3.1 Flash Lite Preview accepts Text, Image, Video, PDF, Audio as input and produces Text as output.

When was Gemini 3.1 Flash Lite Preview released?

Gemini 3.1 Flash Lite Preview was released by Google in 2026-03-03.

Gemini 3.1 Flash Lite Preview

gemini-3.1-flash-lite-preview

API Provider site

Gemini 3.1 Flash Lite Preview is Google's high-efficiency model optimized for high-volume use cases. It outperforms Gemini 2.5 Flash Lite on overall quality and approaches Gemini 2.5 Flash performance across... Built by Google.

Prices updated recently

Input price

$0.25

per 1M tokens · Standard

Output price

$1.50

per 1M tokens · Standard

Input limit

tokens

Output limit

66K

tokens

Input formats

TextImageVideoAudioPDF

Output formats

TextImageVideoAudioPDF

Compare

Gemini 3.1 Flash Lite Preview price history

2 price records since 9/25/2026

Gemini 3.1 Flash Lite Preview cost calculator

Input20M tokens

Output5M tokens

$13/month

Standard pricing

Overview

What is Gemini 3.1 Flash Lite Preview?

Gemini 3.1 Flash Lite Preview is a text & reasoning and vision model from Google. Gemini 3.1 Flash Lite Preview is Google's high-efficiency model optimized for high-volume use cases. It outperforms Gemini 2.5 Flash Lite on overall quality and approaches Gemini 2.5 Flash performance across... Its 1M context window and $0.25 input price make it a candidate for cost-sensitive, high-throughput applications.

Image understandingDocument analysisContent workflowsClassification

Benchmarks

Gemini 3.1 Flash Lite Preview benchmarks & speed

How Gemini 3.1 Flash Lite Preview scores on standardized evaluations, and where it lands among every model we track.

15.6

Intelligence Index

Better than 40% of 153 models

275tok/s

Output speed

Better than 97% of 119 models

1076

DesignArena Elo

Better than 18% of 81 models

Reasoning

GPQA Diamond

82.2%

Graduate-level scientific reasoning · top 49%

HLE

17.2%

Humanity's Last Exam · top 55%

Coding

SciCode

43.4%

Python for scientific computing · top 72%

Latency & design

Time to first token: 5.76s
DesignArena win rate: 36.5%
Design battles judged: 23,537

Independent scores from Artificial Analysis and DesignArena · updated 10/8/2026. Higher is better; ranks compare against every model we track with that score.

Rates

Gemini 3.1 Flash Lite Preview pricing

Pricing is based on token usage. Provider-specific caching, batch, regional, and tool charges may affect the final cost.

Input · Standard

$0.25

Per 1M tokens

Cached input · Standard

$0.03

Per 1M tokens

Capabilities

Gemini 3.1 Flash Lite Preview Tools

Tools available when using Gemini 3.1 Flash Lite Preview through supported provider APIs.

Function calling

Supported

Structured outputs

Supported

JSON mode

Supported

Reasoning

Supported

Built-in web search

Not supported

Log probabilities

Not supported

Deterministic seed

Supported

Parallel tool calls

Not supported

Prompt caching

Supported

Strengths and limitations

Strengths

Low input cost at $0.25 per million tokens suits high-volume workloads.
1M context supports large documents, repositories and extended conversations.
Supports text & reasoning and vision workloads in one model.

Limitations

Generated tokens cost 6× more than input tokens, which matters for verbose responses.
Large context capacity does not guarantee consistent retrieval across the entire prompt.
Arena Elo and MMLU-Pro are directional; test accuracy, latency and reliability on your own workload before committing.

Arena Elo, MMLU-Pro and pricing figures are illustrative; validate current vendor terms before purchase.

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