# Migrating off gpt-4o-realtime-preview-2024-12-17

**OpenAI** retires **gpt-4o-realtime-preview-2024-12-17** on **2026-05-07**.
Documented replacement: **gpt-realtime-1.5**.

Source: https://developers.openai.com/api/docs/deprecations
Source last checked: 2026-09-15.
Calendar as of 2026-09-15 UTC.

| Model | Provider | Retires | Replacement |
|---|---|---|---|
| gpt-4o-realtime-preview-2024-12-17 | OpenAI | 2026-05-07 | gpt-realtime-1.5 |

Also retiring on 2026-05-07:
- gpt-4o-realtime-preview (OpenAI) → gpt-realtime-1.5
- gpt-4o-realtime-preview-2025-06-03 (OpenAI) → gpt-realtime-1.5
- gpt-4o-mini-realtime-preview (OpenAI) → gpt-realtime-mini
- gpt-4o-audio-preview (OpenAI) → gpt-audio-1.5
- gpt-4o-mini-audio-preview (OpenAI) → gpt-audio-mini

Source: https://llmlatency.dev/migrate/openai-gpt-4o-realtime-preview-2024-12-17