Gemini 3.1 Flash Lite Preview API

google/gemini-3-1-flash-lite-preview
Gemini 3.1 Flash resolves this by delivering ultra-low latency responses while maintaining structured outputs, multimodal understanding, and strong reasoning capabilities.
Context
1M tokens
Input
$0.34385 / 1M tokens
Output
$2.0631 / 1M tokens

How to use Gemini 3.1 Flash Lite Preview API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to google/gemini-3-1-flash-lite-preview.
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-preview",
      "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-preview",
    "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-preview","messages":[{"role":"user","content":"Hello!"}]}'

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

Gemini 3.1 Flash Lite Preview API Pricing

TypePrice
Input
$0.34385 / 1M tokens
Output
$2.0631 / 1M tokens
Cached input
$0.034385 / 1M tokens

Gemini 3.1 Flash Lite Preview Benchmarks

BenchmarkScoreWhat it measuresSourceRetrieved
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 Preview vs other models

ModelInputOutputContextBest for
$0.34385 / 1M tokens
$2.0631 / 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 Preview has a 1,000,000 tokens context window and can return up to 65,536 tokens.

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

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

Gemini 3.1 Flash Lite Preview is priced at input $0.34385 / 1M tokens, output $2.0631 / 1M tokens, cached input $0.034385 / 1M tokens.

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

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

Gemini 3.1 Flash Lite Preview was built by Google.

Start building with Gemini 3.1 Flash Lite Preview

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