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Google: Gemini 3.1 Flash-Lite

google/gemini-3.1-flash-lite

Gemini 3.1 Flash-Lite is Google’s proprietary AI model, released Mar 3, 2026. It scores 145 on the Epoch Capabilities Index, costs $0.25/M input and $1.50/M output tokens, and handles a 1M-token context window.

Gemini 3.1 Flash Lite is Google’s GA high-efficiency multimodal model optimized for low-latency, high-volume workloads.

Context
1M
Input
$0.25 / 1M
Output
$1.50 / 1M
Released
Mar 3, 2026
Modalities
textimagevideofileaudio→text

Benchmarks

Scores on standardized evaluations. Higher is better — and rank shows where Gemini 3.1 Flash-Lite lands among all models tracked on Model Beat.

14.0
Intelligence Index
Epoch AI
14th percentile of tracked models
23.0
Coding Index
Epoch AI
23rd percentile of tracked models
4.0
Agentic Index
Epoch AI
4th percentile of tracked models

Reasoning

3 evals
GPQA Diamond81.8%

Graduate-level scientific reasoning

Humanity's Last Exam8.6%

Frontier of human expert knowledge

WeirdML52.2%

Novel ML problem-solving

Coding

2 evals
SciCode43.4%

Scientific research coding

WebDev Arena1254

Human-rated web development

Math

1 evals
AIME 2024/202580.0%

Olympiad-qualifier math

Agentic & Tools

2 evals
APEX13.0%

Multi-step agentic tasks

τ²-bench31.3%

Tool-agent-user reliability

In the news

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Frequently asked questions

What is Gemini 3.1 Flash-Lite?

Gemini 3.1 Flash Lite is Google’s GA high-efficiency multimodal model optimized for low-latency, high-volume workloads.

Who created Gemini 3.1 Flash-Lite?

Gemini 3.1 Flash-Lite is an AI model developed by Google, part of the Gemini family, released Mar 3, 2026.

How much does Gemini 3.1 Flash-Lite cost?

Gemini 3.1 Flash-Lite's list price from Google is $0.25 per million input tokens and $1.50 per million output tokens.

What is Gemini 3.1 Flash-Lite's context window?

Gemini 3.1 Flash-Lite supports a context window of up to 1M tokens.

How does Gemini 3.1 Flash-Lite perform on benchmarks?

On standardized evaluations tracked by Epoch AI, Gemini 3.1 Flash-Lite scores 43.4% on SciCode, 52.2% on WeirdML, 81.8% on GPQA Diamond.

Is Gemini 3.1 Flash-Lite open source?

Gemini 3.1 Flash-Lite is a proprietary model (API access), available through its provider's API rather than as a downloadable open-weight model.

Benchmark data from Epoch AI (CC BY) and Artificial Analysis; pricing, specs & descriptions from OpenRouter. Data updated Nov 12, 2026.