Codex Plugins Are a Confession About Who's Winning

OpenAI rolled out 20 plugins for Codex last week — Slack, Figma, Notion, Gmail, Google Drive. The pitch: Codex isn’t just for coding anymore. It’s for “planning, research, coordination, and post-development workflows.”

Sound familiar? Claude Code has had skills, MCP servers, and shareable plugin bundles for months. What OpenAI calls a feature launch, Anthropic calls Tuesday.

The real story is the admission. As one ZDNET writer put it: every developer he talks to uses Claude Code. OpenAI knows it. The plugin push is an ecosystem play — trying to build the connective tissue that makes switching feel expensive.

Here’s what matters if you’re a practitioner: the tooling investment you make today compounds. Skills you write, MCP servers you configure, workflows you automate — these become switching costs. That’s not a bug. That’s the game. Both OpenAI and Anthropic want to be the platform you build on, not the model you call.

Codex starts at $200/month. Claude Code’s Max plan is $100. The price gap matters less than the ecosystem gap. And right now, that gap is what plugins are trying to close.