# OpenAI GPT-5 nano — deprecation status

> Yes — OpenAI deprecated GPT-5 nano on June 11, 2026 and shuts it down on December 11, 2026 (in 134 days). The recommended replacement is GPT-5.6 Luna.

The smallest model of the GPT-5 generation, priced for classification and routing work that runs millions of times a day. Deprecated alongside gpt-5 and gpt-5-mini in June 2026.

## Facts

| Field | Value |
| --- | --- |
| Provider | OpenAI |
| Model id | `gpt-5-nano` |
| Status | Deprecated |
| Aliases | `gpt-5-nano-2025-08-07` |
| Released | August 7, 2025 |
| Deprecated | June 11, 2026 |
| Shutdown | December 11, 2026 (in 134 days) |
| Last verified | July 30, 2026 |

## Replacement

- **GPT-5.6 Luna** (`gpt-5.6-luna`) · recommended — https://modeldeprecations.dev/openai/gpt-5.6-luna
  - Luna occupies the same slot. At nano volumes even a small change in output length moves the bill, so re-measure token counts on real traffic rather than trusting the per-token price alone.
  - Parameters it accepts: https://modelparams.dev/models/openai/gpt-5.6-luna

```diff
- "model": "gpt-5-nano"
+ "model": "gpt-5.6-luna"
```

## FAQ

### When will OpenAI GPT-5 nano shut down?

OpenAI GPT-5 nano is scheduled to shut down on December 11, 2026, in 134 days.

### What replaces OpenAI GPT-5 nano?

OpenAI recommends GPT-5.6 Luna (`gpt-5.6-luna`) as the replacement for OpenAI GPT-5 nano. Luna occupies the same slot. At nano volumes even a small change in output length moves the bill, so re-measure token counts on real traffic rather than trusting the per-token price alone.

### Is OpenAI GPT-5 nano still available?

Yes, for now. OpenAI GPT-5 nano is deprecated but still answers requests until December 11, 2026. Deprecated models get no further updates and are the first to lose capacity.

### How do I migrate from OpenAI GPT-5 nano to gpt-5.6-luna?

Swap the model id in your API call: replace "gpt-5-nano" with "gpt-5.6-luna". Luna occupies the same slot. At nano volumes even a small change in output length moves the bill, so re-measure token counts on real traffic rather than trusting the per-token price alone.

### Does this apply to gpt-5-nano-2025-08-07 too?

Yes. OpenAI GPT-5 nano is also published as `gpt-5-nano-2025-08-07`; that id shares the same lifecycle dates as `gpt-5-nano`.

## 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-5-nano
JSON: https://modeldeprecations.dev/api/v1/models/openai/gpt-5-nano.json