Gemini 3.1 Flash Lite

by Google

Gemini 3.1 Flash Lite is the newest-generation Lite model from Google, pairing low latency with multimodal capability and an extended reasoning mode. With a 1M-token context window and support for text, images, and PDFs, it handles translation, data extraction, and lightweight agentic workflows efficiently. The model supports a thinking mode for tougher classification and extraction tasks, function calling for tool integration, and structured outputs for programmatic use. It works well for document processing, entity extraction, and routing queries to specialized models based on complexity. Versus Gemini 2.5 Flash Lite, this generation offers improved efficiency and reasoning, while staying more economical than the full Gemini 3.1 Flash. Use it for high-frequency, cost-constrained tasks where speed and multimodal understanding matter.

Key info

Input
Output
Features
Context window
1M
Max output
66K
Input price
$0.25 /1M
Output price
$1.50 /1M
  • EU residency available
  • US residency available
  • Zero data retention via Enterprise
  • No training by default
  • GDPR DPA available

Available routes

Gemini 3.1 Flash Lite runs on 3 different routes through the Opper gateway. Compare residency, ZDR, and training posture at a glance — full data-handling detail per route below.

ProviderRegionZero data retentionTrainingInputOutput
USEnterpriseNo$0.25$1.50
USEnterpriseNo$0.25$1.50
EUEnterpriseNo$0.25$1.50

Uptime and availability

Gemini 3.1 Flash Lite runs on 2 independently monitored routes through the Opper gateway. A direct integration leaves you on one of them, the gateway serves whichever is healthy.

100%effective uptime, last 30 days
Averaged across these routes on their own, a single provider reached 99.23% over the same window.
Daily status through the gateway, which serves each request from whichever route is healthy.
2 monitored providers serve Gemini 3.1 Flash Lite.

Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. See uptime for every provider Opper monitors.

Data handling per route

Each route hosting Gemini 3.1 Flash Lite has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

Gemini United States🇺🇸

Zero data retention is available via Opper Enterprise contract. No training on customer data. US; SCCs; DPA available.

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Abuse monitoring
Third-party access
None disclosed
GDPR DPA
DPA available
Transfer mechanism
SCCs

Google Cloud United States🇺🇸

Zero data retention is available via Opper Enterprise contract. No training on customer data. GLOBAL; SCCs; DPA available.

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Abuse monitoring
Third-party access
None disclosed
GDPR DPA
DPA available
Transfer mechanism
SCCs

Google Cloud European Union🇪🇺

Zero data retention is available via Opper Enterprise contract. No training on customer data. EU; DPA available.

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Abuse monitoring
Third-party access
None disclosed
GDPR DPA
DPA available
Transfer mechanism
Not applicable — data stays in EU

Benchmarks

Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.

Intelligence Index25.6
Coding Index34.7
Reasoning & knowledge
GPQA Diamond
82%
Humanity's Last Exam
17%
Long-context reasoning
71%
Coding
SciCode
42%
Agentic & tool use
Terminal-Bench Hard
24%
τ²-Bench Telecom
31%
Math & instruction following
IFBench
77%

Get started

Call Gemini 3.1 Flash Lite through the Opper gateway with one API key. Let your coding agent set it up, or call it directly — Opper is drop-in compatible with the OpenAI, Anthropic, and Google AI SDKs.

Set it up with your agent

Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.

Or call it directly

import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.OPPER_API_KEY,
baseURL: "https://api.opper.ai/v3/compat",
});
const completion = await client.chat.completions.create({
model: "gemini/gemini-3.1-flash-lite",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

Compare Gemini 3.1 Flash Lite with…

Side-by-side on privacy, EU hosting, pricing, and benchmarks.

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