ChatGPT and Codex Merge: A Billion Users Gain a Super Agent

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.

AI AgentsAI productivityAgent plugins

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ChatGPT and Codex Merge: A Billion Users Gain a Super Agent

AI Explorer

Jun 3, 2026 · Industry Insights

How OpenAI’s Codex Is Turning Into an AI Workbench for Every Role

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.

AI governanceAI workflowAnnotations

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How OpenAI’s Codex Is Turning Into an AI Workbench for Every Role