Who sells Gemini 3.1 Pro Preview cheapest?

Kilo Gateway, at $1 in and $6 out per million tokens, read on 16 Sept 2026. A promotion on Google's models: 50% off on Kilo's gateway, with no end date published.

Is Gemini 3.1 Pro Preview open weights?

No. Google keeps the weights, so every price on this page is Google's own or a resale of it. A price below list here needs a published reason, or it is listed and never ranked.

How much context does Gemini 3.1 Pro Preview hold?

1,048,576 tokens in one call, which is about 1M, and it can call your own functions.

How does Gemini 3.1 Pro Preview compare with the rest of the market?

At $18 per million tokens, Google's price is 407% above the $3.55 median across the 337 text models we track.

Gemini 3.1 Pro Preview pricing.

prices as of 16 Sept 2026 · 40 providers · 40 prices

Google's Gemini 3.1 Pro Preview holds 1M tokens of context, reads images as well as text and has a reasoning mode. Closed weights: only Google and its licensed partners run it, so every other price below resells the same service.

Gemini 3.1 Pro Preview costs $2 in and $12 out per million tokens from Google; the cheapest price we can explain is $9 at Kilo Gateway, checked 16 Sept 2026.

tool callingreads imagesreasoningstructured output1M contextreleased 19 Feb 2026

Compare withvs Gemini 3.1 Pro Preview Custom Tools vs GPT-5.6 Terra or any model →

Google list price

$18/M tokens

$2 in · $12 out

read 16 Sept 2026 · 407% above the market median

Cheapest price we can explain

$9/M tokens

$1 in · $6 out · 50% under list

Kilo Gateway

View at Kilo Gateway ↗

read 16 Sept 2026

What it costs for your work

how manypages a month

Google list price

$1.92a month

cheapest we can explain · Kilo Gateway

$0.96a month

difference

$0.96saved

A page is about 600 tokens in and 60 out, a support reply 200 in and 300 out, an email 150 in and 250 out. Nothing else is counted: no cache discount, no batch rate, no free tier.

Every provider selling Gemini 3.1 Pro Preview

Four groups, decided by the price and by what the provider publishes about it. Prices are per million tokens, and the share is that row against Google's price.

The maker's list price

1 price

What the lab that trained the model charges on its own API.

Google
The price Google charges for the model it trained. Every row below is measured against it.
Google ↗
$2 / $12in / out per M
1.00×of list price

Cheaper, and we know why

2 prices

Below list, with a published reason: hosting the open weights, a regional price list, credits, a stated discount.

Kilo Gateway
A promotion on Google's models: 50% off on Kilo's gateway, with no end date published.
Kilo Gateway ↗
$1 / $6in / out per M
0.50×of list price
Jiekou
5% under the list price, an ordinary reseller margin.
Jiekou ↗
$1.90 / $11.40in / out per M
0.95×of list price

Same price as the maker

35 prices

The same price the maker charges, sold by someone else.

OpenRouter
The same price Google charges.
OpenRouter ↗
$2 / $12in / out per M
1.00×of list price
NanoGPT
The same price Google charges.
NanoGPT ↗
$2 / $12in / out per M
1.00×of list price
Vivgrid
The same price Google charges.
$2 / $12in / out per M
1.00×of list price
Auriko
The same price Google charges.
$2 / $12in / out per M
1.00×of list price
Impossibl
The same price Google charges.
Impossibl ↗
$2 / $12in / out per M
1.00×of list price
LLM Gateway
The same price Google charges.
LLM Gateway ↗
$2 / $12in / out per M
1.00×of list price
AIHubMix
The same price Google charges.
$2 / $12in / out per M
1.00×of list price
OrcaRouter
The same price Google charges.
$2 / $12in / out per M
1.00×of list price
Google Vertex AI
The same price Google charges.
Google Vertex AI ↗
$2 / $12in / out per M
1.00×of list price
Pioneer
The same price Google charges.
1M context herePioneer ↗
$2 / $12in / out per M
1.00×of list price
Requesty
The same price Google charges.
Requesty ↗
$2 / $12in / out per M
1.00×of list price
DaoXE
The same price Google charges.
$2 / $12in / out per M
1.00×of list price
CrossModel
The same price Google charges.
$2 / $12in / out per M
1.00×of list price
FrogBot
The same price Google charges.
1M context here
$2 / $12in / out per M
1.00×of list price
Vercel AI Gateway
The same price Google charges.
1M context hereVercel AI Gateway ↗
$2 / $12in / out per M
1.00×of list price
FastRouter
The same price Google charges.
FastRouter ↗
$2 / $12in / out per M
1.00×of list price
Perplexity Agent
The same price Google charges.
$2 / $12in / out per M
1.00×of list price
Opper
The same price Google charges.
$2 / $12in / out per M
1.00×of list price
Merge Gateway
The same price Google charges.
$2 / $12in / out per M
1.00×of list price
Abacus
The same price Google charges.
$2 / $12in / out per M
1.00×of list price
OpenCode Zen
The same price Google charges.
$2 / $12in / out per M
1.00×of list price
Ofox
The same price Google charges.
Ofox ↗
$2 / $12in / out per M
1.00×of list price
Neon
The same price Google charges.
$2 / $12in / out per M
1.00×of list price
302.AI
The same price Google charges.
$2 / $12in / out per M
1.00×of list price
ZenMux
The same price Google charges.
1M context hereZenMux ↗
$2 / $12in / out per M
1.00×of list price

showing the 25 cheapest of 35 · every row in the open dataset

Cheaper, and nobody says why

2 prices · never ranked

Below list on a closed model with nothing to account for it. Shown, never ranked, never a pick.

Meganova
Lists closed models at 0.80× the maker's price across its catalog.
Meganova ↗
$1.60 / $9.60in / out per M
0.80×of list price
Kenari
We could not read this provider's prices reliably, so the row is listed but never ranked.
Kenari ↗
$2.10 / $12.50in / out per M
1.04×of list price

Frequently asked

Who sells Gemini 3.1 Pro Preview cheapest?: Kilo Gateway, at $1 in and $6 out per million tokens, read on 16 Sept 2026. A promotion on Google's models: 50% off on Kilo's gateway, with no end date published.
Is Gemini 3.1 Pro Preview open weights?: No. Google keeps the weights, so every price on this page is Google's own or a resale of it. A price below list here needs a published reason, or it is listed and never ranked.
How much context does Gemini 3.1 Pro Preview hold?: 1,048,576 tokens in one call, which is about 1M, and it can call your own functions.
How does Gemini 3.1 Pro Preview compare with the rest of the market?: At $18 per million tokens, Google's price is 407% above the $3.55 median across the 337 text models we track.