According to BlockBeats, OpenAI has unveiled a new cloud-based code agent called Codex. This tool is designed to automate various tasks for developers, such as writing functional code, answering questions about codebases, fixing bugs, and reviewing pull requests. Each task operates within its own cloud sandbox environment and can preload the user's codebase.
Codex is powered by the Codex-1 model, a fine-tuned version of OpenAI-o3, specifically optimized for software engineering. It uses reinforcement learning to train on real-world coding tasks across multiple environments, generating code that aligns with programmers' styles and pull request preferences while strictly adhering to instructions.