# OpenAI GPT-4 Turbo — deprecation status

> Yes — OpenAI deprecated GPT-4 Turbo on April 22, 2026 and shuts it down on October 23, 2026 (in 85 days). The recommended replacement is GPT-5.6 Sol.

The 128k-context, cheaper GPT-4 that made long documents practical and held the default slot until GPT-4o arrived a month after its final snapshot. It is deprecated with an October 2026 shutdown.

## Facts

| Field | Value |
| --- | --- |
| Provider | OpenAI |
| Model id | `gpt-4-turbo` |
| Status | Deprecated |
| Aliases | `gpt-4-turbo-2024-04-09`, `gpt-4-turbo-completions` |
| Released | April 9, 2024 |
| Deprecated | April 22, 2026 |
| Shutdown | October 23, 2026 (in 85 days) |
| Last verified | July 30, 2026 |

## Replacement

- **GPT-5.6 Sol** (`gpt-5.6-sol`) · recommended — https://modeldeprecations.dev/openai/gpt-5.6-sol
  - Context is no longer the constraint it was, so chunking logic written for 128k can usually be deleted rather than ported.
  - Parameters it accepts: https://modelparams.dev/models/openai/gpt-5.6-sol

```diff
- "model": "gpt-4-turbo"
+ "model": "gpt-5.6-sol"
```

## FAQ

### When will OpenAI GPT-4 Turbo shut down?

OpenAI GPT-4 Turbo is scheduled to shut down on October 23, 2026, in 85 days.

### What replaces OpenAI GPT-4 Turbo?

OpenAI recommends GPT-5.6 Sol (`gpt-5.6-sol`) as the replacement for OpenAI GPT-4 Turbo. Context is no longer the constraint it was, so chunking logic written for 128k can usually be deleted rather than ported.

### Is OpenAI GPT-4 Turbo still available?

Yes, for now. OpenAI GPT-4 Turbo is deprecated but still answers requests until October 23, 2026. Deprecated models get no further updates and are the first to lose capacity.

### How do I migrate from OpenAI GPT-4 Turbo to gpt-5.6-sol?

Swap the model id in your API call: replace "gpt-4-turbo" with "gpt-5.6-sol". Context is no longer the constraint it was, so chunking logic written for 128k can usually be deleted rather than ported.

### Does this apply to gpt-4-turbo-2024-04-09 too?

Yes. OpenAI GPT-4 Turbo is also published as `gpt-4-turbo-2024-04-09`, `gpt-4-turbo-completions`; those ids share the same lifecycle dates as `gpt-4-turbo`.

## 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-4-turbo
JSON: https://modeldeprecations.dev/api/v1/models/openai/gpt-4-turbo.json