Gemini 3.1 Flash Lite API

google/gemini-3-1-flash-lite
Gemini 3.
Context
1M tokens
Input
$0.325 / 1M tokens
Output
$1.95 / 1M tokens

How to use Gemini 3.1 Flash Lite API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to google/gemini-3-1-flash-lite.
import requests

r = requests.post(
    "https://api.aimlapi.com/v1/chat/completions",
    headers={"Authorization": "Bearer " + AIMLAPI_KEY},
    json={
      "model": "google/gemini-3-1-flash-lite",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ]
    },
)
print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "google/gemini-3-1-flash-lite",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ]
  }),
});
console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/chat/completions \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"google/gemini-3-1-flash-lite","messages":[{"role":"user","content":"Hello!"}]}'

OpenAI-compatible — swap the base URL and it works with your existing SDK.

Gemini 3.1 Flash Lite API Pricing

TypePrice
Input
$0.325 / 1M tokens
Output
$1.95 / 1M tokens
Cached input
$0.0325 / 1M tokens

Gemini 3.1 Flash Lite Benchmarks

BenchmarkScoreWhat it measuresSourceRetrieved
LiveCodeBench
72%
Contamination-free competitive programming problemsSourceJuly 12, 2026
AIME 2025
16.7%
Competition mathematics (AIME), 2025SourceJuly 12, 2026
GPQA Diamond
86.9%
Google-proof graduate science questions (hardest subset)SourceJuly 12, 2026
Intelligence
16
Composite score across standardised reasoning, knowledge and problem-solving evaluations, measured independently by Artificial AnalysisSourceSeptember 12, 2026
Coding
34.7
Composite score across standardised coding evaluations, measured independently by Artificial AnalysisSourceSeptember 12, 2026

Gemini 3.1 Flash Lite vs other models

ModelInputOutputContextBest for
$0.325 / 1M tokens
$1.95 / 1M tokens
1M tokens
Reasoning + agents
$6.5 / 1M tokens
$39 / 1M tokens
1.05M tokens
Reasoning + agents
$2.6 / 1M tokens
$13 / 1M tokens
1M tokens
Balanced coding + agents
$3.9 / 1M tokens
$19.5 / 1M tokens
1M tokens
Long-context, multimodal & agentic workflows
$0.65 / 1M tokens
$3.9 / 1M tokens
1.05M tokens
Reasoning + agents

Frequently asked questions

Gemini 3.1 Flash Lite has a 1,000,000 tokens context window and can return up to 65,536 tokens.

Gemini 3.1 Flash Lite takes audio, image, text, video as input and returns audio, text.

Use google/gemini-3-1-flash-lite as the model id. Requests go to https://api.aimlapi.com/v1/chat/completions.

Gemini 3.1 Flash Lite is priced at input $0.325 / 1M tokens, output $1.95 / 1M tokens, cached input $0.0325 / 1M tokens.

Yes, Gemini 3.1 Flash Lite can stream responses as they are generated.

Yes, Gemini 3.1 Flash Lite accepts image input alongside text.

Gemini 3.1 Flash Lite was built by Google.

Yes, it includes reasoning as one of its capabilities.

It is designed for cost-efficient, high-volume tasks such as translation, lightweight reasoning, and simple agent workflows.

Yes, it supports function calling, tools, and parallel tool calls.

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