Microsoft Foundry model retirement dates
When Microsoft Foundry stops serving each model AIWire tracks, as Microsoft Foundry's own pages say. A platform can retire a model before or after the company's own API does; those dates are on the shutdown tracker.
2 models · 0 within 30 daysChecked daily at
Upcoming
2 models| Model | Provider | Platform ID | State | Shutdown | Time left | Replacement |
|---|---|---|---|---|---|---|
| Grok 4.20 (Non-Reasoning)grok-4.20-0309-non-reasoning | xAI | grok-4-20-non-reasoningversion 1 | Active | Apr 6, 2027 | 173 days | — |
| Grok 4.20 (Reasoning)grok-4.20-0309-reasoning | xAI | grok-4-20-reasoningversion 1 | Active | Apr 6, 2027 | 173 days | — |
No shutdown scheduled
4 models| Model | Provider | Platform ID | State | Not before |
|---|---|---|---|---|
| Grok 4 (0709)grok-4-0709 | xAI | grok-4version 1 | Active | — |
| Grok 4.1 Fast Non-Reasoninggrok-4-1-fast-non-reasoning | xAI | grok-4-1-fast-non-reasoningversion 1 | Active | — |
| Grok 4.1 Fast Reasoninggrok-4-1-fast-reasoning | xAI | grok-4-1-fast-reasoningversion 1 | Active | — |
| Grok Code Fast 1grok-code-fast-1 | xAI | grok-code-fast-1version 1 | Active | — |
Microsoft Foundry still serves these models and has not scheduled a shutdown. A "not before" date is the soonest Microsoft Foundry can stop the model, not a shutdown date; it may keep it running longer.
Retired
3 models| Model | Provider | Platform ID | State | Shut down | Replacement |
|---|---|---|---|---|---|
| Grok 3grok-3 | xAI | grok-3version 1 | Retired on May 1, 2026 | May 1, 2026 | grok-4 |
| Grok 4 Fast Non-Reasoninggrok-4-fast-non-reasoning | xAI | grok-4-fast-non-reasoningversion 1 | Retired on May 1, 2026 | May 1, 2026 | Grok 4.1 Fast Non-Reasoninggrok-4-1-fast-non-reasoning |
| Grok 4 Fast Reasoninggrok-4-fast-reasoning | xAI | grok-4-fast-reasoningversion 1 | Retired on May 1, 2026 | May 1, 2026 | Grok 4.1 Fast Reasoninggrok-4-1-fast-reasoning |