GitHub Copilot

OpenAI introduced Codex, a cloud-based software engineering agent, optimized for multi-task programming assistance. Leveraging an enhanced variant of its o3 model (codex-1) with reinforcement learning, Codex provides code generation, debugging, and workflow automation while enforcing security checks to block malicious code. Initially available to ChatGPT Pro/Team/Enterprise subscribers through a sidebar interface, the tool is being tested by enterprises like Cisco for codebase queries and feature development. Microsoft’s GitHub Copilot, Google’s Duet AI, and emerging competitors face heightened competition as OpenAI strategically expands its developer tool portfolio amid a $5 billion+ projected market growth.