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Gemini 3.1 Flash Lite Preview

google/gemini-3.1-flash-lite-preview

Gemini 3.1 Flash Lite Preview is Google's high-efficiency model optimized for high-volume use cases. It outperforms Gemini 2.5 Flash Lite on overall quality and approaches Gemini 2.5 Flash performance across key capabilities. Improvements span audio input/ASR, RAG snippet ranking, translation, data extraction, and code completion. Supports full thinking levels (minimal, low, medium, high) for fine-grained cost/performance trade-offs. Priced at half the cost of Gemini 3 Flash.

Input price
$0.25USD / 1M tokens
Output price
$1.50USD / 1M tokens
Context window
1M
Max output
65.5K
Production route

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1M context65.5K max outputVision
Input$0.25/MOutput$1.50/MCache read$0.03/M
OutputReady

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Model card

Specifications

Pricing

Input
$0.25 / 1M tokens
Output
$1.50 / 1M tokens
Cache read
$0.03 / 1M tokens

Context & modalities

Context window
1,048,576 tokens
Max output
65,536 tokens
Input
Text, image
Output
Text

Capabilities

Chat
Supported
Vision
Supported
Reasoning
Supported
Structured output
Supported
Function calling
Supported
Audio input
Supported

Access

Provider
Google
Model ID
google/gemini-3.1-flash-lite-preview
Execution
sync
Base URL
https://api.sandbase.ai
API
Chat Completions API
Endpoint
/v1/chat/completions

Independent evaluations

Benchmarks

Scores on standardized evaluations, compared with other models on SandBase.

Metrics sourced from Artificial Analysis · Intelligence Index v4.3

Artificial Analysis Intelligence Index: a composite of ten evaluations across reasoning, knowledge, math and coding. Higher is better. Gemini 3.1 Flash Lite Preview ranks #68 of 84 models on SandBase.

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Send your first request

OpenAI-compatible endpoint with unified authentication and usage tracking.

Production API
Chat Completions API endpoint
https://api.sandbase.ai/v1/chat/completions
Model ID
google/gemini-3.1-flash-lite-preview
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
  -X POST "https://api.sandbase.ai/v1/chat/completions" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @- <<'SANDBASE_JSON'
{
  "model": "google/gemini-3.1-flash-lite-preview",
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ],
  "max_tokens": 2048
}
SANDBASE_JSON
)
printf '%s\n' "$result"

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Questions

FAQ

How do I call Google Gemini 3.1 Flash Lite Preview through SandBase?

Create a SandBase API key, then send requests with the model ID "google/gemini-3.1-flash-lite-preview" to Chat Completions API (/v1/chat/completions) at https://api.sandbase.ai. The request examples on this page show the exact payload.

How much does Google Gemini 3.1 Flash Lite Preview cost?

$0.25 per 1M input tokens and $1.50 per 1M output tokens, billed per request from your SandBase balance. Discounts, when available, are shown in the pricing on this page.

What is the context window of Google Gemini 3.1 Flash Lite Preview?

1M tokens of context, with up to 65.5K output tokens per response.

How does Google Gemini 3.1 Flash Lite Preview score on benchmarks?

Google Gemini 3.1 Flash Lite Preview scores 15.6 on the Artificial Analysis Intelligence Index (v4.3), ranking #68 of 84 models on SandBase; Coding Index 34.7, Agentic Index 1.6. Source: Artificial Analysis, measured as Gemini 3.1 Flash-Lite.

Which features does Google Gemini 3.1 Flash Lite Preview support?

Google Gemini 3.1 Flash Lite Preview supports vision (image input), reasoning, function calling, structured output. See Specifications above for the full list.

Do I need a separate Google account?

No. One SandBase API key and balance gives you access to Google Gemini 3.1 Flash Lite Preview and the other models in the catalog; you do not need to sign up with Google separately.