The author evaluates GPT‑5.6 with Codex and finds that installing the seven plugins—Browser, Chrome, GitHub, Context7, Figma, Visualize, and Sites—creates a full development closed‑loop, detailing each plugin’s capabilities, installation steps, limitations, and a recommended activation order.
OpenAI announced that Codex will be integrated into ChatGPT within weeks, unveiling three major upgrades—Agent plugins, Annotations, and Sites—while reporting a six‑fold surge in weekly active users, a new suite of role‑specific AI colleagues, and a token‑efficient GPT‑5.5 engine that reshapes AI productivity for over a billion users.
OpenAI’s June 2026 Codex update expands the model from a developer‑centric code assistant to a role‑agnostic AI workbench, adding six specialized plugins, a Sites preview feature, document annotations, and integrations with dozens of apps, while highlighting new governance challenges around permissions.
