ONE MODEL, EVERY PLATFORM

`gpt-5.4` deprecation and shutdown dates on every platform

gpt-5.4 is tracked on 3 providers and hosting routes. First to go: Perplexity Agent shuts down openai/gpt-5.4 on Oct 24, 2026. 1 other route has a later published date.

Last updated Oct 23, 2026

Perplexity Agent

gpt-5.4 on Perplexity Agent
Date	Model	Status	Replacement	Source
Oct 24, 2026	`openai/gpt-5.4`	Shuts downTomorrow	None published	Notice ↗

AzureMicrosoft Azure / Foundry

gpt-5.4 on Azure
Date	Model	Status	Replacement	Source
Sep 2, 2027	`gpt-5.4 (2026-03-05)`	Shuts down314 days	None published	Notice ↗

OpenAI

gpt-5.4 on OpenAI
Date	Model	Status	Replacement	Source
Aug 31, 2026	`GPT-5.4`	Shut down	`gpt-5.6-terra`	Notice ↗

Every provider sets its own dates

A deadline on one platform says nothing about another: OpenAI, Azure, Amazon Bedrock, Google Vertex AI and model routers each retire their own copies on their own schedule. Snapshots of the same model (for example dated versions) are listed separately because each has its own date. Rows marked “No deprecation notice tracked” mean ModelClock has not seen a retirement notice for that route, not that one cannot exist.