Codex is an AI coding agent that writes, reviews and automates code.

Elevate your development with an AI coding partner.

Codex runs everywhere you code—local IDEs, cloud sandboxes, terminal CLI and team chat. From generating boilerplate to reviewing and refactoring full projects, it helps engineers move faster and focus on higher-level logic. With integrations into Slack, GitHub, and major developer workflows, Codex brings AI into every phase of the software lifecycle.

Core Features & Capabilities

Ideal for individual developers, dev teams and enterprises seeking to boost code quality, speed up time-to-market and reduce manual overhead across development cycles.

• Generate working code from English prompts in dozens of languages
• Automated pull request creation and code review suggestions
• Integrations with IDEs, terminal CLI and cloud development environments
• Team analytics: track usage, productivity and code quality metrics
• Embed as an agent inside workflows with SDK and cloud sandbox support

Why Developers Choose Codex

Sign in with ChatGPT, install the Codex CLI or IDE extension, start with a prompt or codebase, let Codex generate, review or refactor your code, then iterate and integrate into your CI/CD pipeline for full-scale adoption.

“Codex feels like having a smart coding teammate—boilerplate gone, focus on creativity.”

Getting Started with Codex

By embedding an intelligent coding agent across tools and workflows, Codex helps organisations accelerate development, improve code health and focus engineers on innovation rather than repetition.