xAI · Model retirement
grok-4-latest
Stopped working
Calls to the model grok-4-latest on xAI stopped working on May 15, 2026.
What to use instead of grok-4-latest
Move to grok-4.3. Maps to grok-4.3 with reasoning effort "low". Grok 4 had no non-reasoning mode at all, so this is the first time the workload can be run without thinking tokens if you want that.
Facts
- API
- xAI
api.x.ai - Model
grok-4-latest- Kind
- Model retirement
- Takes effect
- May 15, 2026
- Calls after that day
- Fail
- Source
- models.dev
- Last updated
More from xAI
- grok-3 Redirected
- grok-4 Stopped working
- grok-4-0709 Redirected
- grok-4-1-fast-non-reasoning Redirected
- grok-4-1-fast-reasoning Redirected
- grok-4-fast-non-reasoning Redirected