Google

Gemini 3.1 Flash-Lite

The most cost-efficient Gemini 3 tier, built for classification, extraction, and high-throughput tasks on a 1M-token context window.

Active
Tool callingCan invoke external tools and APIs (function calling) mid-response.Structured outputCan return JSON or schema-constrained responses instead of free text.ReasoningUses extended thinking / chain-of-thought for harder multi-step problems.Effort controlLets you dial thinking depth (low / medium / high) to trade cost for quality.Fine-tuningSupports training a custom variant on your own data.

Source: Gemini API models, Gemini API pricing

Price per 1M tokens
$0.25 in / $1.5 out
Context window1,048,576
Max output65,536
Cache read$0.025 / M
Batch discount-50%
ModalitiesText, Image → Text

Pricing

Every billing leg from the live catalog, in USD per 1M tokens.

Billing legRateBatch
Input$0.25 / M$0.125 / M
Output$1.5 / M$0.75 / M
Cache read$0.025 / M$0.0125 / M

Cost calculator

Billing-grade math over the rate card above, including the thinking tokens most estimates miss.

Hidden reasoning tokens bill as output. 1.0x = thinking off. Medium-effort reasoning typically lands near 3x; heavy reasoning runs 6x to 8x. Set it to match your workload.

Estimated monthly cost
$140
at current list prices
Fresh input$50.00
Cached input$0.00
Output incl. thinking$90.00
Track this automatically →

Provider

Where this model runs, and what it charges.

PlatformInput / MOutput / MCache read / MBatchAccess
Google
$0.25$1.5$0.025✓First-party API

Price history

Has this model gotten cheaper or more expensive?

No changePriced at $0.25 / $1.5 per 1M since July 8, 2026.

More from Google

Other models from the same provider.

Gemini 3.5 Flash
google/gemini-3.5-flash
$1.5 / $9 in / out per 1M
Gemini 3.1 Pro
google/gemini-3.1-pro
$2 / $12 in / out per 1M
Gemini 3 Pro
google/gemini-3-pro
$2 / $12 in / out per 1M
Gemini 3 Flash
google/gemini-3-flash
$0.5 / $3 in / out per 1M
Gemini 2.5 Pro
google/gemini-2.5-pro
$1.25 / $10 in / out per 1M
Gemini 2.5 Flash
google/gemini-2.5-flash
$0.3 / $2.5 in / out per 1M

Stop estimating. Track it.

SuperPenguin meters every Gemini 3.1 Flash-Lite call your team makes, prices it with this exact rate card, and shows spend by feature, customer, and team.

Get started free

Rates are generated from SuperPenguin's live pricing catalog.