OpenAI has begun a phased rollout of its latest AI model, GPT-6 Astra, starting with some companies in its application-based cybersecurity programme, Daybreak. Astra is the first model to reach a \'critical\' level under OpenAI’s internal cybersecurity standards, and access to its advanced security functions will be restricted. The rollout comes after recent security incidents that prompted OpenAI to strengthen safety controls and apply additional safeguards to Astra.

ChatGPT is close to reaching 1 billion weekly active users, The Information reported on Monday. The outlet said OpenAI had internally targeted the milestone by the end of last year, but it is running about seven months behind schedule. User growth slowed somewhat in the second half of last year amid stronger competition, including Google\'s tighter integration of Search and Gemini. OpenAI is prioritising enterprise generative AI.