Introducing Codex

📰 OpenAI News

OpenAI introduces Codex, a cloud-based software engineering agent that can work on multiple tasks in parallel, powered by codex-1

intermediate Published 16 May 2025

Action Steps

Access Codex through the ChatGPT sidebar
Assign new coding tasks by typing a prompt and clicking 'Code'
Ask Codex questions about your codebase by clicking 'Ask'
Review and iterate on Codex's output

Who Needs to Know This

Software engineers, developers, and product managers can benefit from Codex as it can assist with coding tasks, answer questions, and propose pull requests, increasing productivity and efficiency

Key Insight

💡 Codex is powered by codex-1, a version of OpenAI's o3 model optimized for software engineering, and can generate code that closely mirrors human style and preferences