Google: Gemini 3.1 Flash Lite Preview

Public pricingIntelligence 79/100Huge memory視覚深い思考ツール利用

Google: Gemini 3.1 Flash Lite Preview は音声モデルで、視覚言語理解に向いています。マルチモーダル入力処理、画像理解、1M+ tokensのコンテキスト、低コストの特性を組み合わせ、audio understanding and multimodal input で安定した動作を支えます。遅延・コスト・スループットが重要な場面に合っており、安定した出力、柔軟な導入、拡張性を求めるチームに実用的です。安定した応答、長い文脈処理、そして試作から本番まで広く使える柔軟さが必要な場面で役立ちます。安定した応答、長い文脈処理、そして試作から本番まで広く使える柔軟さが必要な場面で役立ちます。安定した応答、長い文脈処理、そして試作から本番まで広く使える柔軟さが必要な場面で役立ちます。

Input

$0.25/1M

Output

$1.50/1M

Cached

$0.03/1M

Batch

$0.05/1M

Calculate your Gemini 3.1 Flash Lite Preview bill.

Set your workload — see cost at your exact volume.

What would Gemini 3.1 Flash Lite Preview cost you?

Adjust the workload to see your monthly bill.

Conversations per month50,000

1,00010,00050,000250,0001M10M

Input length

Output length

Repeated questions?

Replies can wait a few hours (batch discount)

Technical specifications

Gemini 3.1 Flash Lite Preview at a glance.

Memory

1,048,576

tokens

Max reply

65,536

tokens

Memory tier

Huge

multiple books or whole repositories

Tokenizer

sentencepiece

Released

Mar 2026

Training cutoff

Apr 2025

Availability

Public pricing

Status

active

Benchmarks

Quality benchmarks

Independent evaluations from public leaderboards. Higher is better.

humanitys_last_exam
8.64

What it can do

Capabilities & limits.

Understands images
Deep step-by-step thinking
Uses tools / calls functions
Strict JSON output
Streams replies
Fine-tunable on your data

When to pick Gemini 3.1 Flash Lite Preview

Multi-step reasoning, research agents, or hard math.
Screenshot analysis, image understanding, or document OCR.
Agentic workflows that call tools or APIs.
Long documents, full codebases, or extensive chat histories.

When to look elsewhere

Very latency-sensitive, real-time apps where every millisecond counts.

Alternatives

Similar models to compare.

FAQ

Gemini 3.1 Flash Lite Preview — the questions we see most.

Pricing, capabilities, alternatives — generated from the same data that powers the calculator above.

Get instant answers from our AI agent

At a typical workload of 50,000 conversations a month with 1,500-token prompts and 800-token replies, Gemini 3.1 Flash Lite Preview costs roughly $79 per month. Input is $0.25 /1M tokens and output is $1.50 /1M tokens.

Gemini 3.1 Flash Lite Preview has a 1,048,576-token context window (huge memory — multiple books or whole repositories). That means you can fit about 196,608 words of input and history in a single call.

Beyond text generation, Gemini 3.1 Flash Lite Preview supports understanding images, deep step-by-step reasoning, calling functions / tools, strict JSON output, fine-tuning on your own data. It streams replies by default.

Gemini 3.1 Flash Lite Preview was released in March 2026, with training data cut off around April 2025.

Models in a similar class include Gemini 2.5 Flash, Gemini 2.0 Flash, Gemini 2.5 Flash Lite. The "Similar models" section below this FAQ links into each.

Still unsure?

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