# OpenAI GPT-4 — deprecation status

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

The model that started the current era, and still the id people type when they mean "the good one". OpenAI kept it alive for three and a half years — far longer than anything released since — and set its shutdown for October 2026.

## Facts

| Field | Value |
| --- | --- |
| Provider | OpenAI |
| Model id | `gpt-4` |
| Status | Deprecated |
| Aliases | `gpt-4-0613`, `gpt-4-completions`, `gpt-4-0613-completions` |
| Released | March 14, 2023 |
| 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
  - Sol is a reasoning model, so it is not a behavioural drop-in: swap max_tokens for max_completion_tokens and expect reasoning tokens on the bill. Prompts written to coax GPT-4 into thinking step by step are now counterproductive.
  - Parameters it accepts: https://modelparams.dev/models/openai/gpt-5.6-sol

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

## FAQ

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

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

### What replaces OpenAI GPT-4?

OpenAI recommends GPT-5.6 Sol (`gpt-5.6-sol`) as the replacement for OpenAI GPT-4. Sol is a reasoning model, so it is not a behavioural drop-in: swap max_tokens for max_completion_tokens and expect reasoning tokens on the bill. Prompts written to coax GPT-4 into thinking step by step are now counterproductive.

### Is OpenAI GPT-4 still available?

Yes, for now. OpenAI GPT-4 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 to gpt-5.6-sol?

Swap the model id in your API call: replace "gpt-4" with "gpt-5.6-sol". Sol is a reasoning model, so it is not a behavioural drop-in: swap max_tokens for max_completion_tokens and expect reasoning tokens on the bill. Prompts written to coax GPT-4 into thinking step by step are now counterproductive.

### Does this apply to gpt-4-0613 too?

Yes. OpenAI GPT-4 is also published as `gpt-4-0613`, `gpt-4-completions`, `gpt-4-0613-completions`; those ids share the same lifecycle dates as `gpt-4`.

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