gpt-5.4-cyber (retired)
gpt-5.4-cyber is a retired OpenAI model that was removed from the API on October 1, 2026.
- Lab
- OpenAI
- Release date
- Status
- Retired
- API model ID
- gpt-5.4-cyber
- Shutdown date
OpenAI published a deprecation notice for gpt-5.4-cyber on September 11, 2026, with a shutdown date of October 1, 2026, after which the model is no longer accessible in the OpenAI API. OpenAI’s suggested replacement is the most capable cyber model available to the customer.
- Availability
- Retired from the OpenAI API on October 1, 2026. Recommended replacement: the most capable cyber model available to the customer.
- Official source
- developers.openai.com
- Last checked
Questions
When did gpt-5.4-cyber shut down?
OpenAI set a shutdown date of October 1, 2026; under OpenAI’s deprecation policy, a model is no longer accessible after its shutdown date.
What replaces gpt-5.4-cyber?
OpenAI’s suggested replacement is the most capable cyber model available to the customer.
When was gpt-5.4-cyber deprecated?
OpenAI published the deprecation notice on September 11, 2026.
Source
Release dates, model IDs and limits come from each lab’s own announcement, changelog, documentation or deprecations page, linked on every model with the date it was last checked. How we pick and check sources: editorial standards.