GPT-5.4

A rigorous new benchmark tested top AI models on investment banking tasks; not one output was deemed client-ready, though half of bankers found value as a starting point.

OpenAI releases GPT-5.4-Cyber to verified users, expanding access to advanced cyber AI tools while implementing new safeguards and access controls.

OpenAI unveiled a new tiered access plan for AI models with advanced cyber capabilities, expanding availability while implementing controls on who can use them.

OpenAI launches GPT-5.4, its most capable frontier model, featuring built-in computer-use capabilities, a 1-million-token context window, 33% fewer hallucinations, and new agentic workflow tools for professional tasks.