Sources: OpenAI has been briefing US federal agencies, state governments, and Five Eyes allies on the capabilities of its GPT-5.4-Cyber model over the past week (Sam Sabin/Axios)

Sam Sabin / Axios: Sources: OpenAI has been briefing US federal agencies, state governments, and Five Eyes allies on the capabilities of its GPT-5.4-Cyber model over the past week — OpenAI has been briefing federal agencies, state governments and Five Eyes allies on the capabilities of its new cyber product over the past week, Axios has learned.