gemini-3.1-flash-lite-preview

deprecatedproprietary

Our most cost-efficient multimodal model, offering the fastest performance for high-frequency, lightweight tasks. Gemini 3.1 Flash-Lite is best for high-volume agentic tasks, simple data extraction, and extremely low-latency applications where budget and speed are the primary constraints. · Succeeded by gemini-3.1-flash-lite

Context
1.0M
Max output
66K
Input price
$0.25/1M tokens
Output price
$1.5/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing

Details

Provider Google AI
Creator google
Familygemini-3.1
Licenseproprietary
Statusdeprecated
Typechat
Input modalitiestext, image, video, audio
Output modalitiestext, image, audio
Open weightNo
Parameters—
Architecture—
Context window1.0M tokens
Max input—
Max output66K tokens
Reasoning tokens—
Knowledge cutoff
Release date
Deprecation date
Successorgemini-3.1-flash-lite
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Endpoints

Generate ContentPOST
Generate text from multimodal inputhttps://generativelanguage.googleapis.com/v1beta/v1beta/models/{model}:generateContent
Stream ContentPOST
Stream text generation responseshttps://generativelanguage.googleapis.com/v1beta/v1beta/models/{model}:streamGenerateContent

Pricing

Text tokensPer 1M tokens
InputCached inputOutput
Standard$0.25$0.025$1.5
Batch$0.125—$0.75

Family Comparison: gemini-3.1

ModelContextMax outPricing
gemini-3.1-flash-lite-image66K4K$0.25$1.5
gemini-3.1-flash-lite-preview1.0M66K$0.25$1.5
gemini-3.1-flash-lite1.0M66K$0.25$1.5
gemini-3.1-flash-image-preview131K33K$0.5$3
gemini-3.1-flash-image131K33K$0.5$3
gemini-3.1-flash-live-preview131K66K$0.75$4.5
gemini-3.1-flash-tts-preview8K16K$1$20
gemini-3.1-pro-preview1.0M66K$2$12

API

GET/v1/models/google/gemini-3.1-flash-lite-preview

gemini-3.1-flash-lite-preview

deprecated

Our most cost-efficient multimodal model, offering the fastest performance for high-frequency, lightweight tasks. Gemini 3.1 Flash-Lite is best for high-volume agentic tasks, simple data extraction, and extremely low-latency applications where budget and speed are the primary constraints.

Changes · 11 entries
gemini-3.1-flash-lite-previewupdateca7a400Nov 2, 2026, 03:02 AM
statusactive→deprecated
deprecation_date2026-05-25
successorgemini-3.1-flash-lite
gemini-3.1-flash-lite-previewupdatebbc8212May 29, 2026, 12:04 AM
statusactive→deprecated
deprecation_date2026-05-25
successorgemini-3.1-flash-lite
gemini-3.1-flash-lite-previewupdate36c567eMar 27, 2026, 07:38 PM
statusdeprecated→active
deprecation_date2026-03-03
gemini-3.1-flash-lite-previewupdatefa2bbbbMar 24, 2026, 05:22 AM
descriptiona Latina Français Indonesia Italiano Polski Português – B...→Our most cost-efficient multimodal model, offering the fa...
taglinea Latina Français Indonesia Italiano Polski Português – B...→Our most cost-efficient multimodal model, offering the fa...
gemini-3.1-flash-lite-previewupdate1cd659eMar 24, 2026, 04:19 AM
capabilitiesjson modeyes
gemini-3.1-flash-lite-previewupdateb301ebeMar 23, 2026, 11:47 PM
descriptiona Latina Français Indonesia Italiano Polski Português – B...
taglinea Latina Français Indonesia Italiano Polski Português – B...
gemini-3.1-flash-lite-previewupdate2b100acMar 23, 2026, 05:30 AM
model_typechat
licenseproprietary
page_urlhttps://ai.google.dev/gemini-api/docs/models/gemini-3.1-f...
open_weightno
gemini-3.1-flash-lite-previewupdate7a4f1f6Mar 22, 2026, 05:43 AM
modalitiesoutput["text","image"]→["text","image","audio"]
pricinginput$0.25output$1.5cached input$0.025batch input$0.125batch output$0.75tiers[{"label":"Text tokens","unit":"Per 1M tokens","columns":...
gemini-3.1-flash-lite-previewupdateb50649fMar 21, 2026, 11:58 PM
tools["function_calling"]
endpoints["generateContent","streamGenerateContent"]
gemini-3.1-flash-lite-previewupdatec9a70c5Mar 21, 2026, 08:12 AM
deprecation_dateMarch 3, 2026→2026-03-03
knowledge_cutoffJanuary 2025→2025-01
gemini-3.1-flash-lite-previewcreate7f5c66fMar 21, 2026, 05:16 AM