Using OpenAI Codex CLI with GPT-5-Codex

Product Updates & Features - Codex CLI has been improved with updates to GP5 and GP5 codecs, enhancing agentic coding capabilities [1] - Codex CLI can be easily installed with npm or brew and logged in with a Chat GPT account [2] - The new GPT5 Codex model is highly effective for various coding tasks [3] - The model switcher feature allows users to select different models for different tasks, optimizing reasoning level [5] - Codex offers sandboxing features with three modes: read-only, auto (default), and full access, controlling file access and modifications [6][7] - Codex resume allows users to continue from previous sessions [8] - Codex can be used for deploying applications and debugging by analyzing logs and disparate data sources [9][10] Deployment & Usage - Codex can deploy applications on platforms like Versal, utilizing code search to fetch the latest documentation [11] - The demonstration showcased Codex CLI modifying a game to implement a multiplayer feature in real-time [12][13] - Codex CLI supports a wide variety of languages, frameworks, and projects [14] Accessibility & Availability - Codex CLI is designed to be an AI teammate accessible wherever users work, directly in the terminal [15]