Grok 4.3 just cut prices by 60%
xAI dropped Grok 4.3 with zero fanfare. No press release. No livestream. Just a quiet API update that undercuts every frontier model on price. The numbers are brutal. $1.25 per million input tokens. $2.50 output. That's roughly 40–60% cheaper than Grok 4.2 and
03 May 2026