← Artificial Acceleration
xAI · Grok

Grok 4.3

Released 30 Apr 2026 · 23 days after Grok 4.20 0309 v2
notable release
Intelligence
—
no index score yet
Price
$1.56
per 1M tokens, 3:1 in/out · $1.25 in / $2.5 out
Speed
—
not measured
Weights
Closed
US lab

xAI’s best score over time

12 Aug 202621 Sep 2026
← previous from xAIGrok 4.20 0309 v2