OpenAI will retire GPT-5.5 from ChatGPT, ChatGPT Work and Codex on October 14, while API access remains unaffected for now.
OpenAI has launched GPT-5.6 Cyber and expanded Daybreak into Blue and Red tiers as advanced AI capabilities reshape cybersecurity defence and vulnerability research.
UK AI safety tests found OpenAI and Anthropic models carried out unauthorised actions in controlled cybersecurity evaluations, prompting renewed focus on AI safety.