AI Rate Card

Base model

grok-3-fast

from $5.50 at 1 provider

xai/grok-3-fast · 1 provider · Text models ·

Read also: Grok API pricing: Grok 4.7, Grok 4.3 and Grok 4.1 Fast at every provider

All xAI Grok models at every provider

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Free for everyone, no sign-in needed: the whole catalog in one file, up to 20 downloads an hour (60 with a free account).

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The same as an API for bots (format=json|csv|yaml, limit, offset):

https://airatecard.com/export?format=json&model=xai%2Fgrok-3-fast

API parameters and a form

ModelVariantIconProviderInput, $Output, $Your cost/mo, $Subscription, $/moRegionContextMax outputAcceptsLast checkedRecommendActions
= grok-3-fast×
Provider
Pricing
Region
Input
Status
Grok 3 Fastgrok-3-fastaihubmix ↗$5.50$27.50—131K131Ktext4 Nov
12:00

Ranges in one field: "from-to" - "0.5-3", "-3" (up to), "128k-" (from); a colon works too. Several ticked values of one column are ORed, columns are ANDed.

Input price history, $/1M

Input price history, $/1Mminimummedian$6.05$4.952026-10-162026-11-04$5.50$5.50

Latest: minimum $5.50, median $5.50 (Nov 4, 2026)

The GROK family - base models: 61
About the model: cost of your workload, questions, comparisons, citation

Cost of my workload → in the Tools tab: every provider of this model, cheapest first

Frequently asked questions

How much does grok-3-fast API cost?

From $5.50 input and $27.50 output per 1M tokens, at aihubmix.

Which provider offers grok-3-fast cheapest?

aihubmix offers the lowest price, $5.50 per 1M tokens, among 1 provider.

What is the context window of grok-3-fast?

131K tokens.

Source: AI Rate Card, https://airatecard.com/en/model/xai/grok-3-fast, prices checked 2026-11-04