Google: Gemini 3.1 Flash Lite Preview

Public pricingIntelligence 79/100Huge memoryVisionDeep thinkingTool use

Google: Gemini 3.1 Flash Lite Preview is a audio model for vision-language understanding. It combines multimodal input handling and image understanding with a 1M+ tokens context window and a low-cost profile. Use it for audio understanding and multimodal input when latency, cost, and throughput matters.

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.

1,00010,00050,000250,0001M10M

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?

Compare Gemini 3.1 Flash Lite Preview against 100+ other models.

Open the full wizard — pick a use case, set your usage, and see side-by-side monthly costs in under a minute.

Open the comparison wizard