Codex vs Claude Code in 2026: which coding agent should you actually run

tldr: Run Claude Code if you want the more settled agent, since its subagents, sandboxing, and auto mode are already defaults rather than opt-in previews. Run Codex if your team lives in ChatGPT or you need voice. The reason this choice got easier in July 2026 is that Codex can now import your entire Claude Code setup in one command, so picking wrong costs far less than it used to.