Grok 3

retired

xAI · Frontier

xAI's pre-Grok-4 flagship — established the $3/$15 price point that Grok 4 launched at. Fills the gap between Grok 2 and Grok 4.

Input / 1M

$3.00

Output / 1M

$15.00

Cached input / 1M

—

Context window

131K

Where it sits

66% above the frontier median

blended $/Mtok across 24 frontier models

Output costs 5× input

$3.00 in / $15.00 out per 1M

Held flat since launch (Apr 2025)

no blended price change recorded

Computed live from current prices and this model's history — not hand-written, so it stays accurate as prices move.

Only one price on record so far — the history chart appears once a price changes.

Effective	Input	Output	Cached in	Note	Source
9 Apr 2025	$3.00	$15.00	—	API availability date (grok-3-beta); model previewed Feb 2025	docs.x.ai

Grok Build 0.1

Mid

in $1.00 · out $2.00

Grok 4.3

Frontier

in $1.25 · out $2.50

Grok 4.20 Multi-Agent

Mid

in $2.00 · out $6.00

Grok 4.20

Frontier

in $1.25 · out $2.50