# OpenAI GPT-5.3 chat-latest — deprecation status

> Yes — OpenAI deprecated GPT-5.3 chat-latest on May 8, 2026 and shuts it down on August 10, 2026 (in 11 days). The recommended replacement is GPT-5.6 Sol.

The successor pointer to gpt-5.2-chat-latest, deprecated on the same day and the same shutdown date as the id it replaced. Chat-latest pointers move with ChatGPT rather than with the API, which is exactly why pinning one is risky: the behaviour underneath can change without the id changing.

## Facts

| Field | Value |
| --- | --- |
| Provider | OpenAI |
| Model id | `gpt-5.3-chat-latest` |
| Status | Deprecated |
| Deprecated | May 8, 2026 |
| Shutdown | August 10, 2026 (in 11 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 pinned model rather than a moving pointer, so output stays stable between deploys. That is the main behavioural difference to plan for.
  - Parameters it accepts: https://modelparams.dev/models/openai/gpt-5.6-sol

```diff
- "model": "gpt-5.3-chat-latest"
+ "model": "gpt-5.6-sol"
```

## FAQ

### When will OpenAI GPT-5.3 chat-latest shut down?

OpenAI GPT-5.3 chat-latest is scheduled to shut down on August 10, 2026, in 11 days.

### What replaces OpenAI GPT-5.3 chat-latest?

OpenAI recommends GPT-5.6 Sol (`gpt-5.6-sol`) as the replacement for OpenAI GPT-5.3 chat-latest. Sol is a pinned model rather than a moving pointer, so output stays stable between deploys. That is the main behavioural difference to plan for.

### Is OpenAI GPT-5.3 chat-latest still available?

Yes, for now. OpenAI GPT-5.3 chat-latest is deprecated but still answers requests until August 10, 2026. Deprecated models get no further updates and are the first to lose capacity.

### How do I migrate from OpenAI GPT-5.3 chat-latest to gpt-5.6-sol?

Swap the model id in your API call: replace "gpt-5.3-chat-latest" with "gpt-5.6-sol". Sol is a pinned model rather than a moving pointer, so output stays stable between deploys. That is the main behavioural difference to plan for.

## Sources

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

---

Canonical page: https://modeldeprecations.dev/openai/gpt-5.3-chat-latest
JSON: https://modeldeprecations.dev/api/v1/models/openai/gpt-5.3-chat-latest.json