OpenAI's Big Codex Update Fires Back at Anthropic's Claude Code

OpenAI has released a major update to its agentic coding and development system, Codex, which enables it to control desktop apps on your computer with unprecedented flexibility. Building on its existing capabilities in background operation and multi-agent parallelism, the new feature allows users to utilize their computer resources more efficiently. This means developers can leverage Codex’s advanced capabilities for testing, iteration, and app modification without interrupting their work. The update marks a significant escalation in OpenAI’s direct competition with Anthropic’s Claude Code, which has garnered considerable attention in the AI development community.