OpenAI schedules GPT-5.4-Cyber API retirement for October 1

Lifecycleupcoming

Severityhigh

ConsequenceAPI 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.

Componentsgpt-5.4-cyber

AudienceOpenAI API teams using the exact gpt-5.4-cyber model ID for authorized cybersecurity work.

RegionOpenAI API; no regional exception documented

Stable event IDksr-openai-gpt-5-4-cyber-2026-10-01

Change typeretirement

BeforeDeprecated; the listed shutdown date has not yet passed.

AfterScheduled for retirement on 2026-10-01.

ActionInventory exact gpt-5.4-cyber use. Confirm approved access to gpt-5.6-cyber and test authorized workloads before switching.

Replacement or migration pathgpt-5.6-cyber is the named replacement, but it requires separate approval and provisioning. Test authorized workloads after access is confirmed.

Date roleMigration deadline

Date2026-10-01

Statusupcoming

StatusOfficial-source review; runtime not tested

LimitationsReplacement access for any particular account is unverified. No runtime migration or compatibility test was performed. The replacement is a cybersecurity model for approved authorized use; do not imply general availability.

Checked2026-09-22

Official sourceshttps://developers.openai.com/api/docs/deprecations · https://developers.openai.com/api/docs/models/gpt-5.6-cyber

Correction historyNo corrections recorded.