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OpenAI's Codex overtook Anthropic's Claude Code in three months after GPT-5.5's release, prompting Every CEO Dan Shipper and head of growth Austin Tedesco to switch their daily coding workflow from Claude to Codex.
What: Every CEO Dan Shipper and head of growth Austin Tedesco switched from Claude Code to Codex after OpenAI released GPT-5.5 and a desktop app faster than Claude Desktop or Cowork. Austin uses Codex to generate strategy documents from Notion notes and Slack threads. Dan uses it for recruiting, finding candidates with specific career arcs like General Assembly to AI transitions. Austin's migration: open the project in Codex, tell it you work in Claude Code, ask it to adapt.
Why it matters: The AI coding assistant market is moving so fast that a clear product leader can be overtaken in months. Model releases like GPT-5.5 drive instant market repositioning, making long-term tool commitments risky for developers who need to stay productive.
Takeaway: To migrate from Claude Code to Codex, open your project in Codex and tell it you typically work in Claude Code, then ask it to inspect your folder and update anything that should work differently.
Decoder
- Vibe coding: The overall feel and user experience of working with AI coding assistants, beyond raw technical capabilities.
Original article
OpenAI's Codex now surpasses Anthropic's Claude Code after Codex's integration of GPT-5.5 and improved app performance. Austin Tedesco highlights Codex's use in creating strategy documents from diverse sources, while Dan Shipper uses it for recruiting based on career trajectories. Marcus Moretti adopts a cautious approach to new AI tech, focusing only on tools solving real problems and proven by reputable use.
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