# Migrating off gpt-4o-realtime-preview-2024-10-01

**OpenAI** retires **gpt-4o-realtime-preview-2024-10-01** on **2025-10-10**.
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-2024-10-01 | OpenAI | 2025-10-10 | gpt-realtime-1.5 |

Also retiring on 2025-10-10:
- gpt-4o-audio-preview-2024-10-01 (OpenAI) → gpt-audio-1.5

Source: https://llmlatency.dev/migrate/openai-gpt-4o-realtime-preview-2024-10-01