Grok 4.1 Fast
Retired · Language, Reasoning · Primary source available
- Lifecycle
- Milestone or variant
- Related model
- Source event
- AI Radar coverage
- Only month or year known
- 4 events
2025
2026
As of 10 October 2026
Released +1
Retired
Predecessor Grok 4 Fast
All events, in order
- Lineage Predecessor Grok 4 Fast
- Lifecycle Released
- Source Announcement published
- Lifecycle Retired
← The full record of Grok 4.1 Fast, with every claim and its sources