grok-4-fast-reasoning
For grok-4-fast-reasoning, provider is Microsoft Azure / Foundry; lifecycle status is Retired; shutdown / retirement date is 2026-05-01; recommended replacement is grok-4-1-fast-reasoning; platform / deployment scope is Azure / Microsoft Foundry, recorded from its source on 2026-08-12.
- Provider
- Microsoft Azure / Foundry
- Model ID / API name
- grok-4-fast-reasoning verified
- Human-readable model name
- grok-4-fast-reasoning verified
- Lifecycle status
- Retired verified
- Shutdown / retirement date
- 2026-05-01 verified
- Recommended replacement
- grok-4-1-fast-reasoning verified
- Platform / deployment scope
- Azure / Microsoft Foundry our reading
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
grok-4-fast-reasoning | 1 | Retired | 2026-05-01 | grok-4-1-fast-reasoning |
— learn.microsoft.com, retrieved 2026-08-12
Source
- learn.microsoft.comhttps://learn.microsoft.com/en-us/azure/foundry/openai/concepts/model-retirement-schedule