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Cloud platform · Azure AI Foundry

Microsoft model and API lifecycle

Tracks the official Azure AI Foundry model retirement schedule, where model versions, regions, and lifecycle clocks can differ from direct APIs.

5Verified changes
2Upcoming cutoffs
8Affected identifiers
1Official sources

Action required

Upcoming Microsoft deadlines

Complete and regression-test each migration before the provider's announced cutoff.

20 days left

codex-mini: model retirement on November 15, 2026

No replacement identifier passed the evidence gate. Follow the linked provider documentation for the required request or behavior change.

Microsoft · Azure AI Foundry44 days left

gpt-4o: model retirement on December 9, 2026

The official source lists gpt-5.6-sol as a replacement identifier. Test the migration against current provider documentation before production.

Microsoft · Azure AI Foundry

Verified October 26, 2026

Published Microsoft lifecycle changes

2 record awaiting source recheck.

Exact symptoms and migration actions, linked to the official platform documentation used for verification.

MicrosoftAzure AI Foundryhigh

gpt-5-chat: model retirement on May 13, 2026

Microsoft documents a model retirement affecting gpt-5-chat on May 13, 2026. The source lists gpt-chat-latest as a replacement identifier.

model retirementSearch repositories and deployment configuration for gpt-5-chat. The official source lists gpt-chat-latest as a replacement identifier. Test the migration against current provider documentation before production.
MicrosoftAzure AI Foundryhigh

gpt-5-chat: model retirement on June 29, 2026

Microsoft documents a model retirement affecting gpt-5-chat on June 29, 2026. The source lists gpt-chat-latest as a replacement identifier.

model retirementSearch repositories and deployment configuration for gpt-5-chat. The official source lists gpt-chat-latest as a replacement identifier. Test the migration against current provider documentation before production.
MicrosoftAzure AI Foundryhighsource recheck due

Stable-Diffusion-3.5-Large, Stable-Image-Core, and 1 more: model retirement on July 31, 2026

Microsoft documents a model retirement affecting Stable-Diffusion-3.5-Large, Stable-Image-Core, and 1 more on July 31, 2026. No replacement identifier passed the evidence gate.

model retirementSearch repositories and deployment configuration for Stable-Diffusion-3.5-Large, Stable-Image-Core, and Stable-Image-Ultra. No replacement identifier passed the evidence gate. Follow the linked provider documentation for the required request or behavior change.
MicrosoftAzure AI Foundryhigh

TimeGEN-1: model retirement on August 31, 2026

Microsoft documents a model retirement affecting TimeGEN-1 on August 31, 2026. The source lists TimeGPT-1 and TimegGPT-2.1 as replacement identifiers.

model retirementSearch repositories and deployment configuration for TimeGEN-1. The official source lists TimeGPT-1 and TimegGPT-2.1 as replacement identifiers. Test the migration against current provider documentation before production.
MicrosoftAzure AI Foundryhighsource recheck due

o1: model retirement on October 21, 2026

Microsoft documents a model retirement affecting o1 on October 21, 2026. The source lists gpt-5.6-sol as a replacement identifier.

model retirementSearch repositories and deployment configuration for o1. The official source lists gpt-5.6-sol as a replacement identifier. Test the migration against current provider documentation before production.
MicrosoftAzure AI Foundrymedium

codex-mini: model retirement on November 15, 2026

Microsoft documents a model retirement affecting codex-mini on November 15, 2026. No replacement identifier passed the evidence gate.

model retirementSearch repositories and deployment configuration for codex-mini. No replacement identifier passed the evidence gate. Follow the linked provider documentation for the required request or behavior change.
MicrosoftAzure AI Foundryhigh

gpt-4o: model retirement on December 9, 2026

Microsoft documents a model retirement affecting gpt-4o on December 9, 2026. The source lists gpt-5.6-sol as a replacement identifier.

model retirementSearch repositories and deployment configuration for gpt-4o. The official source lists gpt-5.6-sol as a replacement identifier. Test the migration against current provider documentation before production.

Official Microsoft source coverage

Change Radar monitors 1 first-party Microsoft documentation page using a dedicated lifecycle ledger. These are the source pages used to qualify lifecycle records for publication.