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Find the OpenAI model or product you use, move to the replacement before the shutdown date, and validate it against your production prompts, tools, latency, and cost. Dates come from OpenAI’s API deprecations page.

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Model deprecations

The catalogue records these dates on the affected model entries, with a replacement model ID where there is one. The dates apply to the snapshots OpenAI names; Phaseo may serve a snapshot under a canonical model ID. A model’s page shows its dates and suggested replacement, and Phaseo keeps serving a retired model while any provider does. See Model Deprecation and Retirement for alerts and automatic replacement.

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Platform deprecations

OpenAI also retires products that aren’t models:

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Migrate

  1. Replace the deprecated model or product in staging.
  2. Re-run representative evaluations, especially structured outputs, tool calls, audio quality, and long-context tasks.
  3. Compare latency and spend under production-like concurrency.
  4. Canary the replacement with an explicit rollback route before the shutdown date.
For full snapshot mappings and endpoint-specific guidance, see OpenAI’s API deprecations documentation.
Last modified on November 5, 2026