OpenAI upgrades Codex to automate your workflows - and compete better with Claude Code
By David Gewirtz
Published on March 27, 2026.
OpenAI is introducing plugins for its Codex development tool, allowing it to compete more directly with Claude Code. The plugin architecture used by Codex bundles repeatable workflows with app integrations, providing a more complete workflow solution inside the Codex environment. This move is important as it expands Codex as the agentic force behind planning, research, coordination, and post-development workflows. The company's new GPT-5.3-Codex is 25% faster and goes further beyond coding now. While Claude Code made an astonishing $1B in 6 months, OpenAI's new plugins package skills and integrations together so that various solutions work as turnkey capabilities.
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