# OpenAI GPT-4o Realtime preview (2024-10-01) — deprecation status

> Yes — GPT-4o Realtime preview (2024-10-01) is retired. OpenAI deprecated it on June 10, 2025 and shut it down on October 10, 2025; API requests to it now fail. The recommended replacement is GPT Realtime 1.5.

The original realtime snapshot from the October 2024 launch, deprecated eight months later on a four-month notice. Realtime previews were versioned by date and turned over faster than anything else on the platform at the time.

## Facts

| Field | Value |
| --- | --- |
| Provider | OpenAI |
| Model id | `gpt-4o-realtime-preview-2024-10-01` |
| Status | Retired |
| Released | October 1, 2024 |
| Deprecated | June 10, 2025 |
| Shutdown | October 10, 2025 (293 days ago) |
| Last verified | July 30, 2026 |

## Replacement

- **GPT Realtime 1.5** (`gpt-realtime-1.5`) · recommended — https://modeldeprecations.dev/openai/gpt-realtime-1.5
  - Two protocol revisions separate this snapshot from the current realtime model; treat the voice pipeline as a rewrite.
  - Parameters it accepts: https://modelparams.dev/models/openai/gpt-realtime-1.5

```diff
- "model": "gpt-4o-realtime-preview-2024-10-01"
+ "model": "gpt-realtime-1.5"
```

## FAQ

### When did OpenAI GPT-4o Realtime preview (2024-10-01) shut down?

OpenAI GPT-4o Realtime preview (2024-10-01) shut down on October 10, 2025. API requests to it fail from that date onward.

### What replaces OpenAI GPT-4o Realtime preview (2024-10-01)?

OpenAI recommends GPT Realtime 1.5 (`gpt-realtime-1.5`) as the replacement for OpenAI GPT-4o Realtime preview (2024-10-01). Two protocol revisions separate this snapshot from the current realtime model; treat the voice pipeline as a rewrite.

### Is OpenAI GPT-4o Realtime preview (2024-10-01) still available?

No. OpenAI GPT-4o Realtime preview (2024-10-01) is retired and no longer served — it was shut down on October 10, 2025. Calls to it return an error.

### How do I migrate from OpenAI GPT-4o Realtime preview (2024-10-01) to gpt-realtime-1.5?

Swap the model id in your API call: replace "gpt-4o-realtime-preview-2024-10-01" with "gpt-realtime-1.5". Two protocol revisions separate this snapshot from the current realtime model; treat the voice pipeline as a rewrite.

## Sources

- [OpenAI API deprecations](https://developers.openai.com/api/docs/deprecations) — accessed 2026-07-30

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Canonical page: https://modeldeprecations.dev/openai/gpt-4o-realtime-preview-2024-10-01
JSON: https://modeldeprecations.dev/api/v1/models/openai/gpt-4o-realtime-preview-2024-10-01.json