googleVerified record

Gemini 3.1 Pro Preview

Name: Gemini 3.1 Pro Preview API pricing
Brand: Google
SKU: gemini-3.1-pro-preview

Direct API pricing, with every rate traced to its source and observation date.

Explore pricing View history

Last verified 2026-10-23 08:49 UTCTracked at this price since 2026-10-18Context 1,048,576 tokensSnapshot 5c6136e9814a

01 / OFFICIAL TARIFFS

Every cost, in context.

Current verified rates from the direct provider API. Each line has its own unit and condition.

Price dimension	Condition	Rate / unit	Evidence
STANDARDInput tokens	New input · standard API	$2.00USD / 1M tokens	Source ↗
Output tokens	Generated output · standard API	$12.00USD / 1M tokens	Source ↗
PROMPT CACHECache read	Eligible reused input	$0.20USD / 1M tokens	Source ↗
BATCHBatch input	Asynchronous batch request	$1.00USD / 1M tokens	Source ↗
Batch output	Asynchronous batch response	$6.00USD / 1M tokens	Source ↗

Provider effective date: not announcedReview source & method ↗

02 / CHANGE LOG

What changed, and when.

Observation dates belong to this registry. Provider effective dates appear separately when announced.

No verified input or output price change recorded.

Tracking started 2026-10-18 16:09 UTC. This registry has one price point; it cannot establish whether the provider changed prices before that date.

Tracking started2026-10-18 16:09 UTC
Input $2.00 · Output $12.00 · Blended $4.50
Provider effective date not announcedOfficial price source ↗

Unchanged checks do not create new points. This timeline tracks verified input and output tariffs; other rate dimensions are shown above at their current values.

03 / COST MODEL

Make the numbers
your own.

Start with 6,000 input and 400 output tokens per task. Edit the assumptions below.

ESTIMATED MONTHLY SPEND

Standard API · your stated volume

$16.80 / month

Shape the workload01—03

Tasks / monthInput tokens / taskOutput tokens / task

THE BREAKDOWN

Every dollar, accounted for.

Same workload. Different tariff conditions.

Standard APIAll input charged at the standard rate

$16.80

Batch APISeparate batch tariff; turnaround and eligibility vary

$8.40

New inputOutput

Prices from the verified provider source ↗. Volumes and cache reuse are your assumptions. Cache requires provider eligibility and retention; this estimate excludes tools, retries, taxes and success rate. Batch is a separate scenario.

Change the workload in the calculator ↗

04 / MODEL LINE

More in Gemini Pro.

Names and versions identify a line. They do not prove equal quality, speed or capability.

Only this verified version is in the registry.

Other versions will appear here when their prices pass verification and publication review.

05 / PROVENANCE

Check the source.

Every current rate is attached to a dated source snapshot.

Official pricing page: Open provider source ↗
Last verified: 2026-10-23 08:49 UTC
Provider effective date: Not announced in verified source
Source snapshot SHA-256: 5c6136e9814a88be9176e8263a866524fe8074d14ba31fbf075875b5e15ad9fc

Read the pricing method ↗ · Versioned pricing JSON ↗