OpenAI schedules GPT-5.4-Cyber API retirement for October 1
OpenAI lists October 1, 2026 for gpt-5.4-cyber API removal and now recommends the most capable cyber model available to the customer. GPT-5.6 Cyber independently requires separate approval and provisioning; it is no longer specifically named by this deprecation table.
Required action
Review gpt-5.4-cyber use against the October 1 deadline. Confirm an available authorized replacement and validate it. No exact shutdown time or account entitlement has been established.
Scope and evidence limits
OpenAI API; no regional exception documented
API access to the exact gpt-5.4-cyber ID is scheduled to end October 1. Approved access to gpt-5.6-cyber cannot be assumed.
not_tested
Official sources
Affected components
gpt-5.4-cyber
Affected users
OpenAI API teams using the exact gpt-5.4-cyber model ID for authorized cybersecurity work.
Migration guidance
Use the most capable cyber model available to your organization. Confirm model access, approval, provisioning and supported API surface, then validate authorized workloads before cutover.
Correction history
- 2026-10-01 source review: Current HTML and Markdown deprecation tables changed replacement guidance to availability-scoped cyber guidance. Keep October 1 date and approval/provisioning holds; do not claim the date-only deadline has passed today. Previous guidance: OpenAI schedules gpt-5.4-cyber for API removal October 1 and names gpt-5.6-cyber as the replacement. Access to the replacement requires separate approval and provisioning. Action: Inventory exact gpt-5.4-cyber use. Confirm approved access to gpt-5.6-cyber and test authorized workloads before switching.