Yesterday, OpenAI released Codex, a response to Anthropic’s Claude Code. Here’s a summary from ChatGPT what they actually do: Anthropic’s Claude Code On February 24, 2025, Anthropic quietly rolled out Claude Code, a command‐line interface built atop its Claude 3.7 Sonnet model. Designed to “live in your terminal,” it ingests your codebase context and lets you invoke natural‐language commands—everything from scaffolding new modules to refactoring existing functions—without leaving the command line. By embedding its own LLM at the core of the developer workflow, Anthropic ensures feature parity between the model’s evolving capabilities and the tool’s UX. OpenAI’s Codex CLI Just weeks later, on April 16 and 17, 2025, OpenAI published its open‐source Codex CLI, bringing the latest OpenAI reasoning engines straight to the shell. Out of the box, it supports multimodal inputs—text, screenshots, even hand‐drawn diagrams—and provides a granular approval workflow (suggest, auto‐edit, full‐a...