Grok 3 Mini

retired

xAI · Small

Budget Grok at $0.30/$0.50 — undercut o1-mini by 10× on input. Superseded by Grok 4.1 Fast.

Input / 1M

$0.3

Output / 1M

$0.5

Cached input / 1M

—

Context window

128K

Where it sits

50% below the small median

blended $/Mtok across 5 small models

Output costs 1.7× input

$0.3 in / $0.5 out per 1M

Held flat since launch (Jun 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
10 Jun 2025	$0.3	$0.5	—	API availability date; 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