Modelpeers

GPT-5.4-Cyber

Model at OpenAI

Retiring

GPT-5.4-Cyber to be removed October 1

gpt-5.4-cyber was deprecated with removal from the API on October 1, 2026.

Who is affected:
Approved security teams using gpt-5.4-cyber.
Action needed:
Move to the most capable cyber model available to you.

Source

"model is deprecated and will be removed from the API on October 1, 2026."

OpenAI API deprecations page

Published

Open the sourcedevelopers.openai.com

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