OpenAI deprecation schedule

Keep the current OpenAI shutdown schedule and migration paths in one dated view.

This page is the shortest source-linked answer to the OpenAI deprecation schedule query. It keeps the currently tracked shutdown dates, affected surfaces, replacement paths, and next-click briefs in one place.

Current state

The current OpenAI lifecycle cluster already has enough dated items to manage as a schedule.
Live schedule
The schedule below is built from the current OpenAI deprecations page and the migration guides already used by the live briefs on this site.

Earliest listed date

March 26, 2026

Last checked

March 12, 2026

Tracked items

4 dated OpenAI lifecycle items

Shutdown schedule

These are the OpenAI items currently carrying dated shutdown or replacement pressure.

Start with the date, then open the brief if the migration has interface, object-model, or model-selection complexity behind it. This page is a working schedule, not a doc mirror.

DeprecatedMarch 26, 2026

Selected legacy GPT snapshots

OpenAI places legacy GPT-4 snapshot IDs and older preview aliases on a March 26, 2026 shutdown path, with replacement guidance pointing to the gpt-5 or gpt-4.1 family.

This brief focuses on the March 26, 2026 GPT-4 snapshot shutdown group, where direct snapshot IDs and older preview aliases need a deliberate replacement path.

Replacement path

gpt-5 or gpt-4.1 family

DeprecatedMay 7, 2026

gpt-4o preview audio and realtime models

OpenAI has also dated the shutdown of several gpt-4o preview realtime and audio models, with replacement paths now pointing to the current realtime and audio families.

This brief covers the preview gpt-4o realtime and audio model names with a shared May 7, 2026 cutoff.

Replacement path

gpt-realtime-1.5, gpt-realtime-mini, gpt-audio-1.5, or gpt-audio-mini

DeprecatedMay 7, 2026

Realtime API beta

OpenAI marks the beta Realtime interface deprecated and routes teams to the GA Realtime API before the shutdown date.

This migration changes interface assumptions, event handling, and item flow rather than just swapping a model name.

DeprecatedAugust 26, 2026

Assistants API

OpenAI marks the Assistants API deprecated and directs new work toward the Responses API plus the Conversations API.

Object-model changes matter here because the migration is not just an endpoint swap.

Replacement path

Responses API plus Conversations API

Why this page matters

The schedule is where lifecycle risk becomes planning work.

A deprecation schedule is a planning surface, not just a warning list.
Once a shutdown date exists, the real decision becomes when to inventory usage, when to benchmark replacements, and when to move production traffic before the deadline compresses the work.
Different deprecations create different kinds of migration debt.
Some items are interface migrations, like Assistants API or Realtime beta. Others are model-name migrations, like legacy snapshots and preview aliases. The next action depends on which class of debt the schedule item creates.
The fastest useful next click is usually the matching brief, not the raw doc.
Use the official deprecations page as source of record, then open the relevant brief when the migration needs mapping, replacement framing, or pre-cutover checks.

Triage checklist

Use the schedule to decide what gets worked now, not only what is technically deprecated.

This page should compress prioritization. The actual migration work should happen on the matching brief or in the implementation backlog.

Sort the schedule by production dependency, not only by date.

A later shutdown can still be the more urgent migration if it touches a higher-traffic surface or a more brittle integration path.

Map each listed item to an owner and a replacement choice.

Do not leave schedule items as generic platform debt. The replacement path should be explicit for each affected system before the date gets close.

Use the brief when the schedule item changes objects, interfaces, or model families.

The schedule page is for triage. The detail brief is where teams should work once the migration includes concrete implementation changes or evaluation risk.

Re-check the source page before cutover decisions.

This site keeps a last-checked date visible, but operational cutovers should still confirm the official OpenAI deprecations page again before the final move.

Return to the OpenAI deprecations hub

Go back to the OpenAI deprecations index to browse the live migration briefs and the official source set behind the current lifecycle cluster.

Continue the site

Keep moving through the decision from here.

Use the groups below to move laterally through the decision, not back out into another doc hunt.

Related pages

Stay in the same decision neighborhood instead of backing out to search.

OpenAI deprecations tracker

Provider-specific hub for OpenAI shutdown dates, migration briefs, and replacement paths.

Open page

Legacy GPT snapshots

Migration brief for dated legacy GPT snapshots and older preview aliases with a fixed cutoff.

Open page

Assistants API shutdown date

Shutdown-date brief for Assistants API with migration mapping and replacement path.

Open page

Compare pages

Open the pages that turn this topic into a side-by-side decision.

GPT-5.4 vs GPT-5 mini

Side-by-side comparison of GPT-5.4 and GPT-5 mini across price, fit, and tool pressure.

Open page

Cheapest OpenAI model for extraction

Scenario recommendation page for choosing the cheapest workable OpenAI extraction model.

Open page

Replacement pages

Use the likely substitutes, migration targets, or fallback choices as the next click.

Realtime API beta shutdown

Shutdown-date brief for the Realtime beta interface and the current GA migration path.

Open page

GPT-4o preview audio and realtime models

Migration brief for dated preview audio and realtime model names moving to current families.

Open page

OpenAI API pricing calculator

Interactive calculator for model tokens, hosted tools, and runtime in one estimate.

Open page

Source category pages

Trace the source families behind this page instead of opening random docs in isolation.

Deprecation and migration sources

Official shutdown, migration, and replacement references behind lifecycle pages.

Open page

Guide and API reference sources

Operational guides and API references used by tool-cost, migration, and calculator pages.

Open page