LIKE ANTHROPIC, OPENAI WILL SHARE LATEST TECHNOLOGY ONLY WITH TRUSTED COMPANIES

Summary from the TLDR newsletter

OpenAI plans to share a new model called GPT‑5.4‑Cyber with hundreds of organizations before expanding release to other partners in the coming weeks. It plans to make the tool as widely available as possible while preventing misuse. The model is designed to identify security holes in software. OpenAI hopes to give defenders an edge over attackers by releasing the technology to a smaller group.