OpenAI broadens GPT-5.4 suite with Codex Security agent and ChatGPT for Excel add-in
OpenAI expanded its GPT-5.4 ecosystem with the launch of Codex Security, an autonomous agent that scans entire code repositories, builds project-specific threat models, and cuts false positives by half. In its first 30-day beta, the agent examined 1.2 million commits, identified 792 critical vulnerabilities and helped secure 14 CVEs for projects such as OpenSSH, GnuTLS and Chromium. OpenAI also released a beta ChatGPT for Excel add-in that lets users create, modify and analyze spreadsheets using natural language while preserving formulas and cell structures, and it integrates data from providers such as FactSet and S&P Global. Additionally, the company announced a program for open-source maintainers that provides six months of free ChatGPT Pro access, API credits and the Codex agent, complementing its one-million-dollar Codex Open Source Fund.
Read Full Article