--- title: "What happened to gpt-5.4-cyber? Model retired on 11 SEP 2026" canonical_url: https://cookiesforai.app/ai-changelog/tools/gpt-5-4-cyber markdown: https://cookiesforai.app/ai-changelog/tools/gpt-5-4-cyber.md publisher: "CookiesForAI" last_updated: 2026-10-20T20:07:09+02:00 type: status summary: "gpt-5.4-cyber: Model retired on 11 SEP 2026. OpenAI deprecated the gpt-5.4-cyber model, which will be removed from the API on October 1, 2026." --- > Full index of this site: https://cookiesforai.app/llms.txt # What happened to gpt-5.4-cyber? **Model retired on 11 SEP 2026.** OpenAI deprecated the gpt-5.4-cyber model, which will be removed from the API on 01 OCT 2026. Source: [OpenAI API deprecations](https://platform.openai.com/docs/deprecations.md). ## What this means On 11 SEP 2026, OpenAI deprecated the gpt-5.4-cyber model, with removal from the API set for 01 OCT 2026. This affects developers who use it through the API. Migrate to the most capable cyber model available to you before the shutdown date. ## More changes from OpenAI - [Assistants API](https://cookiesforai.app/ai-changelog/tools/assistants-api): Replaced on 26 AUG 2026 - [babbage-002](https://cookiesforai.app/ai-changelog/tools/babbage-002): Model retired on 28 SEP 2026 - [ChatGPT group chats](https://cookiesforai.app/ai-changelog/tools/chatgpt-group-chats): Access changed on 09 JUL 2026 - [ChatGPT on WhatsApp](https://cookiesforai.app/ai-changelog/tools/chatgpt-on-whatsapp): Access changed on 15 JAN 2026 - [davinci-002](https://cookiesforai.app/ai-changelog/tools/davinci-002): Model retired on 28 SEP 2026 - [gpt-3.5-turbo-1106](https://cookiesforai.app/ai-changelog/tools/gpt-3-5-turbo-1106): Model retired on 28 SEP 2026 - [gpt-3.5-turbo-instruct](https://cookiesforai.app/ai-changelog/tools/gpt-3-5-turbo-instruct): Model retired on 28 SEP 2026 - [OpenAI Operator](https://cookiesforai.app/ai-changelog/tools/openai-operator): Replaced on 17 JUL 2025 - [Sora](https://cookiesforai.app/ai-changelog/tools/sora): Shut down on 24 SEP 2026 - Made by: OpenAI - Website: https://platform.openai.com/ - Status: Model retired on 11 SEP 2026 - Checked: 20 OCT 2026 [What happened to AI tools](https://cookiesforai.app/ai-changelog/tools) ยท [AI changelog by date](https://cookiesforai.app/ai-changelog)