Migrating off gpt-4.1-nano — retirement date and replacement
Azure OpenAI is retiring gpt-4.1-nano on 2027-10-14 — in 441 days. The provider has not named a replacement in its own documentation, so the migration target is your decision. This page is built from Azure OpenAI’s official deprecation notice and is rechecked weekly; the source link is below.
When is gpt-4.1-nano being deprecated?
| Model | Provider | Retires | Replacement |
|---|---|---|---|
| gpt-4.1-nano | Azure OpenAI | 2027-10-14 | — not named |
Source: Azure OpenAI deprecation notice
What should I migrate gpt-4.1-nano to?
Azure OpenAI has not published a successor for this model. That makes the decision yours, and it is worth treating as an opportunity to compare providers rather than defaulting to whatever is nearest. Endpoint responsiveness is measurable; model quality claims mostly are not.
We do not currently probe the Azure OpenAI API host, so no measured latency is shown here. Rather than estimate it, we publish nothing. See the providers we do measure →
What else retires on 2027-10-14?
| Model | Provider | Retires | Replacement |
|---|---|---|---|
| gpt-4.1 | Azure OpenAI | 2027-10-14 | — not named |
| gpt-4.1-mini | Azure OpenAI | 2027-10-14 | — not named |
Same shutdown date. If you call more than one of these, they are one migration, not several.
Other Azure OpenAI models being retired
| Model | Provider | Retires | Replacement |
|---|---|---|---|
| gpt-4o | Azure OpenAI | 2027-10-01 | — not named |
| gpt-4o-mini | Azure OpenAI | 2027-10-01 | — not named |
| o4-mini | Azure OpenAI | 2027-10-16 | — not named |
How is this calendar maintained?
Entries are pulled from provider documentation by an automated weekly job and every one carries a link to its source. Nothing is inferred from blog posts or social media. When a provider changes a date, the change appears here after the next run and is visible in the changelog. The full calendar across all providers is on the deprecations page, and this provider’s own list is at Azure OpenAI deprecations.