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ModelsGoogleGemini 3.1 Pro Preview

Gemini 3.1 Pro Preview

google/gemini-3.1-pro-preview1M context Compare →
MedianThe median blended price among comparable offers: one price per provider (its cheapest route), standard tier, current prices only. Priority tiers and prices converted from points are not counted.
$4.50
Most expensiveThe highest blended price among comparable offers: one price per provider (its cheapest route), standard tier, current prices only. Priority tiers and prices converted from points are not counted.
$7.50
Offers
32
Providers
18

Cheapest right now

$4.50 blended / 1M tokens

No change7D
in
$2.00
out
$12.00
Cached input
$0.20

Public leaderboards

  • Text Arena, style controlThe series the source publishes by default for text since 16 May 2025: ranks corrected for the style of the answers (style control). #12 of 419Best rank in the source's rank spread, 12th to 29th, given the confidence intervals of all ranked models. 20th by score. 1,487 1,484 to 1,490Arena Score · 132,547 votes
  • Code Arena (WebDev)The Code Arena ranking (WebDev). The source publishes no style-corrected series (as read on 9 October 2026). #77 of 152Best rank in the source's rank spread, 77th to 89th, given the confidence intervals of all ranked models. 80th by score. 1,447 1,442 to 1,452Arena Score · 24,129 votes
  • Agent Arena aggregateThe Agent Arena aggregate score: a score of another kind (not an Arena score), on a scale of its own; it cannot be compared with the other series. #37 of 57Best rank in the source's rank spread, 37th to 46th, given the confidence intervals of all ranked models. 40th by score. −0.045 −0.058 to −0.031IPS score · 2,936,702 observations

Source: Arena (opens in a new tab) · Data under the CC BY 4.0 license (creativecommons.org/licenses/by/4.0) · CC BY 4.0 (opens in a new tab) · scores and ranks as published on 28 Oct 2026; the presentation is ours

Gemini 3.1 Pro Preview costs from $4.50 per million tokens (at a 3:1 input:output mix): the lowest current price, at 9 providers, checked on ; 32 offers are listed.

Listed offers, by price

Comparable offersOther offersSolid steps are comparable offers; dashed steps are the other offers, which are not counted in cheapest, median or most expensive.Official list price

Offers not counted in cheapest, median or most expensive (21)

  • $4.50 · Google AI Studio via Eden AI · cannot be designated the cheapest
  • $4.50 · Google AI Studio via Kilo Gateway · cannot be designated the cheapest
  • $4.50 · Google AI Studio via Kilo Gateway · cannot be designated the cheapest
  • $4.50 · Google AI Studio via LLM API · cannot be designated the cheapest
  • $4.50 · Google Vertex via Eden AI · cannot be designated the cheapest
  • $4.50 · Google Vertex via LLM API · cannot be designated the cheapest
  • $4.50 · Abacus RouteLLM via Abacus RouteLLM · cannot be designated the cheapest
  • $4.50 · FastRouter via FastRouter · cannot be designated the cheapest
  • $4.50 · Glama via Glama · cannot be designated the cheapest
  • $4.50 · Martian via Martian · cannot be designated the cheapest
  • $4.50 · Nous Portal via Nous Portal · cannot be designated the cheapest
  • $4.50 · OrcaRouter via OrcaRouter · cannot be designated the cheapest
  • $4.50 · Google AI Studio via LLM Gateway · another route of the same provider
  • $4.50 · Google AI Studio via Requesty · another route of the same provider
  • $4.50 · Google Vertex via Requesty · another route of the same provider
  • $4.50 · Google AI Studio via OpenRouter · another route of the same provider
  • $4.73 · ShengSuanYun via ShengSuanYun · cannot be designated the cheapest
  • $8.10 · Google AI Studio via Kilo Gateway · cannot be designated the cheapest
  • $8.10 · Google AI Studio via Kilo Gateway · cannot be designated the cheapest
  • $8.10 · Google via OpenRouter · priority tier
  • $8.10 · Google AI Studio via OpenRouter · priority tier

Cheapest that confirms no training on your prompts. The provider's published policy: prompts are not used for training.

$4.50 blended / 1M tokens

in
$2.00
out
$12.00
Cached input
$0.20

Price historyThe cheapest offer each day, against the lab's official list price when it publishes one. Each day at 00:00 UTC, the offer the API would have selected as the cheapest, with the same exclusions as /cheapest. Blended price, promotions included.

Cheapest offer and official list price, by day, 30 days
DayCheapest offerOfficial list price
2026-10-02$4.50, Abacus RouteLLM$4.50
2026-10-03$4.50, Abacus RouteLLM$4.50
2026-10-04$4.50, Abacus RouteLLM$4.50
2026-10-05$4.50, Abacus RouteLLM$4.50
2026-10-06$4.50, Google$4.50
2026-10-07$4.50, Google$4.50
2026-10-08$4.50, Google$4.50
2026-10-09$4.50, Google$4.50
2026-10-10$4.50, Google$4.50
2026-10-11$4.50, Google$4.50
2026-10-12$4.50, Google$4.50
2026-10-13$4.50, Google$4.50
2026-10-14$4.50, Google$4.50
2026-10-15$4.50, Google$4.50
2026-10-16$4.50, Google$4.50
2026-10-17$4.50, Google$4.50
2026-10-18$4.50, Google$4.50
2026-10-19$4.50, Google AI Studio$4.50
2026-10-20$4.50, Google AI Studio$4.50
2026-10-21$4.50, Google AI Studio$4.50
2026-10-22$4.50, Google AI Studio$4.50
2026-10-23$4.50, Google AI Studio$4.50
2026-10-24$4.50, Google AI Studio$4.50
2026-10-25$4.50, AtlasCloud$4.50
2026-10-26$4.50, AtlasCloud$4.50
2026-10-27$4.50, AtlasCloud$4.50
2026-10-28$4.50, AtlasCloud$4.50
2026-10-29$4.50, AtlasCloud$4.50
2026-10-30$4.50, AtlasCloud$4.50
2026-10-31$4.50, Google AI Studio$4.50

Cheapest offerOfficial list price

Offers

32 of 32 offers

Offers for Gemini 3.1 Pro Preview, one row per offer, sorted by blended price.
RankProvider · viaYou buy access through an aggregator: one account and one API that forward your requests to other providers. "Via" names the aggregator; the price is the one it charges you. When "via" says "hosted API", no aggregator is involved: the model belongs to a lab and another provider sells it.Input $/1MOutput $/1MBlended $/1MA single price that mixes input and output: 3 input tokens for 1 output token, per million tokens. It makes offers easy to rank; your real cost depends on your own mix. ContextThe maximum amount of text, counted in tokens, the model can take in and write in a single request. Past this limit, the request is refused or cut.ConditionsWhat a provider says about how it handles your data and who can sign up: training on prompts, processing region, sign-up requirements. Each comes from the provider's published documents; when nothing is published, it stays unknown.SignalsOffer
1 Google AI Studio 2.00 12.00 4.50 –
2 AtlasCloudhosted APISold by a provider other than the lab that made the model. 2.00 12.00 4.50 1M
3 NanoGPT 2.00 12.00 4.50 1M
4 Google AI Studiovia Eden AI 2.00 12.00 4.50 1M Unverified. No public page for this offer: listed, not designated cheapest
5 Google AI Studiovia Kilo Gateway 2.00 12.00 4.50 1M Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapest
6 Google AI Studiovia Kilo Gateway 2.00 12.00 4.50 1M Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapest
7 Google AI Studiovia LLM API 2.00 12.00 4.50 – Unconfirmed. Last checked 18 October 2026: the last published value, not a confirmed one Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapest
8 Google Vertexvia Eden AI 2.00 12.00 4.50 1M Unverified. No public page for this offer: listed, not designated cheapest
9 Google Vertexvia LLM API 2.00 12.00 4.50 – Unconfirmed. Last checked 18 October 2026: the last published value, not a confirmed one Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapest
10 InferenceNethosted APISold by a provider other than the lab that made the model. 2.00 12.00 4.50 1M
11 Abacus RouteLLM 2.00 12.00 4.50 1M United States Unverified. No public page for this offer: listed, not designated cheapest
12 FastRouter 2.00 12.00 4.50 1M Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
13 Glama 2.00 12.00 4.50 1M Unverified. No public page for this offer: listed, not designated cheapest
14 Martian 2.00 12.00 4.50 – worldwide Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
15 Nous Portal 2.00 12.00 4.50 1M Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
16 OrcaRouter 2.00 12.00 4.50 1M Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
17 Vercel AI Gateway 2.00 12.00 4.50 –
18 ZenMux 2.00 12.00 4.50 1M prompt up to 200K tokens: up to 200K: $2.00 / $12.00; above that: $4.00 / $18.00 (Input / Output, per million tokens)
19 Google AI Studiovia LLM Gateway 2.00 12.00 4.50 – Fee 5%: LLM Gateway adds a 5% fee on credit usage, plus 1.5% for cards issued outside the US (read on llmgateway.io/pricing on Oct 31). Offers are ranked with the 5% included.
20 Google Vertexvia LLM Gateway 2.00 12.00 4.50 – Fee 5%: LLM Gateway adds a 5% fee on credit usage, plus 1.5% for cards issued outside the US (read on llmgateway.io/pricing on Oct 31). Offers are ranked with the 5% included.
21 Quartzvia LLM Gateway 2.00 12.00 4.50 – Fee 5%: LLM Gateway adds a 5% fee on credit usage, plus 1.5% for cards issued outside the US (read on llmgateway.io/pricing on Oct 31). Offers are ranked with the 5% included.
22 Google AI Studiovia Requesty 2.00 12.00 4.50 1M Fee 5%: Requesty adds a 5% markup (read on requesty.ai/pricing on Oct 31). Offers are ranked with this fee included.prompt up to 200K (199,999) tokens: up to 200K (199,999): $2.00 / $12.00; above that: $4.00 / $18.00 (Input / Output, per million tokens)
23 Google Vertexvia Requesty 2.00 12.00 4.50 1M Fee 5%: Requesty adds a 5% markup (read on requesty.ai/pricing on Oct 31). Offers are ranked with this fee included.prompt up to 200K (199,999) tokens: up to 200K (199,999): $2.00 / $12.00; above that: $4.00 / $18.00 (Input / Output, per million tokens)
24 Googlevia OpenRouter 2.00 12.00 4.50 1M Fee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 31). Offers are ranked with this fee included.prompt up to 200K tokens: up to 200K: $2.00 / $12.00; above that: $4.00 / $18.00 (Input / Output, per million tokens)
25 Google AI Studiovia OpenRouter 2.00 12.00 4.50 1M Fee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 31). Offers are ranked with this fee included.prompt up to 200K tokens: up to 200K: $2.00 / $12.00; above that: $4.00 / $18.00 (Input / Output, per million tokens)
26 ShengSuanYun 2.10 12.63 4.73 1M Unverified. No public page for this offer: listed, not designated cheapest
27 Venicehosted APISold by a provider other than the lab that made the model. 2.50 15.00 5.63 1M
28 RedPill 4.00 18.00 7.50 1M
29 Google AI Studiovia Kilo Gateway 3.60 21.60 8.10 1M Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapestPriority tier: A different service tier, with its own speed and availability conditions.
30 Google AI Studiovia Kilo Gateway 3.60 21.60 8.10 1M Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapestPriority tier: A different service tier, with its own speed and availability conditions.
31 Googlevia OpenRouter 3.60 21.60 8.10 1M Priority tier: A different service tier, with its own speed and availability conditions.Fee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 31). Offers are ranked with this fee included.prompt up to 200K tokens: up to 200K: $3.60 / $21.60; above that: $7.20 / $32.40 (Input / Output, per million tokens)
32 Google AI Studiovia OpenRouter 3.60 21.60 8.10 1M Priority tier: A different service tier, with its own speed and availability conditions.Fee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 31). Offers are ranked with this fee included.prompt up to 200K tokens: up to 200K: $3.60 / $21.60; above that: $7.20 / $32.40 (Input / Output, per million tokens)

No training on promptsPrompts may be used for trainingTraining terms not published

backend not named. The router bills this price itself without naming who serves the model.

  • Google AI Studio

    in
    $2.00
    out
    $12.00
    Context
    –

    Training terms not published

  • hosted APISold by a provider other than the lab that made the model.

    in
    $2.00
    out
    $12.00
    Context
    1M

    Training terms not published

  • NanoGPT

    $4.50

    NanoGPT

    in
    $2.00
    out
    $12.00
    Context
    1M

    No training on prompts

  • Eden AI

    in
    $2.00
    out
    $12.00
    Context
    1M

    Prompts may be used for trainingUnverified. No public page for this offer: listed, not designated cheapest

    Seller's site: Eden AI (opens in a new tab)No public price page for this model
  • Kilo Gateway

    in
    $2.00
    out
    $12.00
    Context
    1M

    Training terms not publishedUnverified. The source page shows one price per model, not this seller's: listed, not designated cheapest

  • Kilo Gateway

    in
    $2.00
    out
    $12.00
    Context
    1M

    Training terms not publishedUnverified. The source page shows one price per model, not this seller's: listed, not designated cheapest

  • LLM API

    in
    $2.00
    out
    $12.00
    Context
    –

    No training on promptsUnconfirmed. Last checked 18 October 2026: the last published value, not a confirmed oneUnverified. The source page shows one price per model, not this seller's: listed, not designated cheapest

  • Eden AI

    in
    $2.00
    out
    $12.00
    Context
    1M

    Prompts may be used for trainingUnverified. No public page for this offer: listed, not designated cheapest

    Seller's site: Eden AI (opens in a new tab)No public price page for this model
  • LLM API

    in
    $2.00
    out
    $12.00
    Context
    –

    No training on promptsUnconfirmed. Last checked 18 October 2026: the last published value, not a confirmed oneUnverified. The source page shows one price per model, not this seller's: listed, not designated cheapest

  • hosted APISold by a provider other than the lab that made the model.

    in
    $2.00
    out
    $12.00
    Context
    1M

    No training on prompts

  • Abacus RouteLLM

    in
    $2.00
    out
    $12.00
    Context
    1M

    No training on promptsUnited StatesUnverified. No public page for this offer: listed, not designated cheapest

    Seller's site: Abacus RouteLLM (opens in a new tab)No public price page for this model
  • FastRouter

    in
    $2.00
    out
    $12.00
    Context
    1M

    Training terms not publishedUnverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapestbackend not named: The router bills this price itself without naming who serves the model.

  • Glama

    $4.50

    Glama

    in
    $2.00
    out
    $12.00
    Context
    1M

    No training on promptsUnverified. No public page for this offer: listed, not designated cheapestbackend not named: The router bills this price itself without naming who serves the model.

    Seller's site: Glama (opens in a new tab)No public price page for this model
  • Martian

    $4.50

    Martian

    in
    $2.00
    out
    $12.00
    Context
    –

    Training terms not publishedworldwideUnverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapestbackend not named: The router bills this price itself without naming who serves the model.

  • Nous Portal

    in
    $2.00
    out
    $12.00
    Context
    1M

    Prompts may be used for trainingUnverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapestbackend not named: The router bills this price itself without naming who serves the model.

  • OrcaRouter

    in
    $2.00
    out
    $12.00
    Context
    1M

    Training terms not publishedUnverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapestbackend not named: The router bills this price itself without naming who serves the model.

  • Vercel AI Gateway

    in
    $2.00
    out
    $12.00
    Context
    –

    No training on prompts

  • ZenMux

    $4.50

    ZenMux

    in
    $2.00
    out
    $12.00
    Context
    1M

    Prompts may be used for trainingprompt up to 200K tokens: up to 200K: $2.00 / $12.00; above that: $4.00 / $18.00 (Input / Output, per million tokens)

  • LLM Gateway

    in
    $2.00
    out
    $12.00
    Context
    –

    No training on promptsFee 5%: LLM Gateway adds a 5% fee on credit usage, plus 1.5% for cards issued outside the US (read on llmgateway.io/pricing on Oct 31). Offers are ranked with the 5% included.

  • LLM Gateway

    in
    $2.00
    out
    $12.00
    Context
    –

    No training on promptsFee 5%: LLM Gateway adds a 5% fee on credit usage, plus 1.5% for cards issued outside the US (read on llmgateway.io/pricing on Oct 31). Offers are ranked with the 5% included.

  • Quartz

    $4.50

    LLM Gateway

    in
    $2.00
    out
    $12.00
    Context
    –

    Training terms not publishedFee 5%: LLM Gateway adds a 5% fee on credit usage, plus 1.5% for cards issued outside the US (read on llmgateway.io/pricing on Oct 31). Offers are ranked with the 5% included.

  • Requesty

    in
    $2.00
    out
    $12.00
    Context
    1M

    Prompts may be used for trainingFee 5%: Requesty adds a 5% markup (read on requesty.ai/pricing on Oct 31). Offers are ranked with this fee included.prompt up to 200K (199,999) tokens: up to 200K (199,999): $2.00 / $12.00; above that: $4.00 / $18.00 (Input / Output, per million tokens)

  • Requesty

    in
    $2.00
    out
    $12.00
    Context
    1M

    Prompts may be used for trainingFee 5%: Requesty adds a 5% markup (read on requesty.ai/pricing on Oct 31). Offers are ranked with this fee included.prompt up to 200K (199,999) tokens: up to 200K (199,999): $2.00 / $12.00; above that: $4.00 / $18.00 (Input / Output, per million tokens)

  • Google

    $4.50

    OpenRouter

    in
    $2.00
    out
    $12.00
    Context
    1M

    Training terms not publishedFee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 31). Offers are ranked with this fee included.prompt up to 200K tokens: up to 200K: $2.00 / $12.00; above that: $4.00 / $18.00 (Input / Output, per million tokens)

  • OpenRouter

    in
    $2.00
    out
    $12.00
    Context
    1M

    No training on promptsFee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 31). Offers are ranked with this fee included.prompt up to 200K tokens: up to 200K: $2.00 / $12.00; above that: $4.00 / $18.00 (Input / Output, per million tokens)

  • ShengSuanYun

    in
    $2.10
    out
    $12.63
    Context
    1M

    Training terms not publishedUnverified. No public page for this offer: listed, not designated cheapest

    Seller's site: ShengSuanYun (opens in a new tab)No public price page for this model
  • Venice

    $5.63

    hosted APISold by a provider other than the lab that made the model.

    in
    $2.50
    out
    $15.00
    Context
    1M

    No training on prompts

  • RedPill

    $7.50

    RedPill

    in
    $4.00
    out
    $18.00
    Context
    1M

    Training terms not published

  • Kilo Gateway

    in
    $3.60
    out
    $21.60
    Context
    1M

    Training terms not publishedUnverified. The source page shows one price per model, not this seller's: listed, not designated cheapestPriority tier: A different service tier, with its own speed and availability conditions.

  • Kilo Gateway

    in
    $3.60
    out
    $21.60
    Context
    1M

    Training terms not publishedUnverified. The source page shows one price per model, not this seller's: listed, not designated cheapestPriority tier: A different service tier, with its own speed and availability conditions.

  • Google

    $8.10

    OpenRouter

    in
    $3.60
    out
    $21.60
    Context
    1M

    Training terms not publishedPriority tier: A different service tier, with its own speed and availability conditions.Fee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 31). Offers are ranked with this fee included.prompt up to 200K tokens: up to 200K: $3.60 / $21.60; above that: $7.20 / $32.40 (Input / Output, per million tokens)

  • OpenRouter

    in
    $3.60
    out
    $21.60
    Context
    1M

    No training on promptsPriority tier: A different service tier, with its own speed and availability conditions.Fee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 31). Offers are ranked with this fee included.prompt up to 200K tokens: up to 200K: $3.60 / $21.60; above that: $7.20 / $32.40 (Input / Output, per million tokens)

Show the 25 cheapest only

8 flex or batch offers hidden (lower priority, variable latency).

Blended = (3 × input + output) / 4, per million tokens. Prices in USD, converted at the ECB rate when the provider bills in another currency.

Method

Monthly cost for your workload

Computed by the API for the three cheapest offers, per 30-day month.
  1. Google AI Studio$300.00per month
  2. AtlasCloud$300.00per month+$0.00 vs the cheapest
  3. NanoGPT$300.00per month+$0.00 vs the cheapest

Compare Gemini 3.1 Pro Preview with

Related models

More from Google

All Google models

Same index family

Use this data

The index is queryable. The API is free to use.
Free API
curl https://api.inferindex.dev/cheapest?model=google/gemini-3.1-pro-preview
MCP server
claude mcp add --transport http inferindex https://mcp.inferindex.dev/mcp

Also works in Cursor and Codex: see the MCP page.