xAI · Grok (xAI)
Grok 4
SupersededReleased 11 months ago· Jul 1, 2025Multimodal model
Original Grok 4 flagship ($3.00/$15.00, 256K); retired from most access May 15, 2026 and replaced by Grok 4.3.
- API string
- grok-4
- Context window
- 256K ctx
- Tier
- Legacy
- Released
- Jul 1, 2025
Release & change timeline
2 events- Retirement
Grok 4 retired from most access
Retired May 15, 2026 alongside Grok 4 Fast and Grok Code Fast 1; requests redirect to Grok 4.3 pricing.
- Release
Grok 4 released
First Grok positioned as frontier-competitive; 256K context, $3.00/$15.00; launched with Heavy variant.
Part of the Grok (xAI) version timeline. Catch Me Up — everything that changed across AI & smart home ↗