# OpenAI gpt-4.5-preview shutdown model not found

Status: search-observed
Product: OpenAI API
Last verified: 2026-06-25
Canonical HTML: https://gitdocs.org/fix/openai-gpt-4-5-preview-shutdown-model-not-found
Machine JSON: https://gitdocs.org/api/fixes/openai-gpt-4-5-preview-shutdown-model-not-found.json

## Exact Symptom

See the observed Codex queries below.

## Diagnosis

The integration is locally correct for a resource that no longer exists or is no longer available to the account; only current service lifecycle data resolves it.

## Fix

```
Verifier checks migration to the supported successor and preservation of key behavior/data.
```

## Avoid

- Changing local code without checking the current external contract.
- Retrying the same install, build, or API call with no version/source change.
- Applying a broad unsafe bypass when a narrow compatibility fix is available.

## Observed Codex Queries

- site:platform.openai.com/docs gpt-4.5-preview deprecation model retirement OpenAI API
- OpenAI gpt-4.5-preview shutdown model not found
- https://platform.openai.com/docs/deprecations
- 'gpt-4.5' in https://platform.openai.com/docs/deprecations

## Sources

- GPT-4.5 Preview API retirement: https://openai.com/index/gpt-4-1/
- Official reference opened by Codex: https://platform.openai.com/docs/deprecations