OpenAI deprecation schedule
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.
Shutdown schedule
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.
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.
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
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.
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
Triage checklist
This page should compress prioritization. The actual migration work should happen on the matching brief or in the implementation backlog.
A later shutdown can still be the more urgent migration if it touches a higher-traffic surface or a more brittle integration path.
Do not leave schedule items as generic platform debt. The replacement path should be explicit for each affected system before the date gets close.
The schedule page is for triage. The detail brief is where teams should work once the migration includes concrete implementation changes or evaluation risk.
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
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.
Provider-specific hub for OpenAI shutdown dates, migration briefs, and replacement paths.
Open pageMigration brief for dated legacy GPT snapshots and older preview aliases with a fixed cutoff.
Open pageShutdown-date brief for Assistants API with migration mapping and replacement path.
Open pageCompare pages
Open the pages that turn this topic into a side-by-side decision.
Replacement pages
Use the likely substitutes, migration targets, or fallback choices as the next click.
Shutdown-date brief for the Realtime beta interface and the current GA migration path.
Open pageMigration brief for dated preview audio and realtime model names moving to current families.
Open pageInteractive calculator for model tokens, hosted tools, and runtime in one estimate.
Open pageSource category pages
Trace the source families behind this page instead of opening random docs in isolation.