For developers considering the leap from Claude Code to Codex CLI, this shift represents more than just a change in tools, it's a rethinking of how you approach workflows, task execution, and even problem-solving. With its impressive 272K token context window and open source adaptability, Codex CLI offers a tantalizing glimpse into what's possible. But before you make the switch, it's essential to understand the trade-offs and challenges that come with this upgrade.