OpenAI's Codex 3.0 becomes an autonomous cross-app coding agent with GPT-5.5
By
Rohan Chaubey
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Summary
OpenAI's Codex 3.0, powered by GPT-5.5, has evolved into a cross-app coding agent that can autonomously navigate browsers, interact with web applications, generate documents in Microsoft Office and Google Drive, and test workflows. The agent can see, click, debug, and iterate on its own, aiming to provide developers with reliable end-to-end automated builds.
Key quotes
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It sees, clicks, debugs, and iterates autonomously, bringing developers closer to reliable, end-to-end automated builds.
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