software engineering AI News & Updates

METR Study Finds AI Coding Tools Slow Down Experienced Developers by 19%

A randomized controlled trial by METR involving 16 experienced developers found that AI coding tools like Cursor Pro actually increased task completion time by 19%, contrary to developers' expectations of 24% improvement. The study suggests AI tools may struggle with large, complex codebases and require significant time for prompting and waiting for responses.

OpenAI Launches Codex: Advanced AI Coding Agent Powered by o3 Reasoning Model

OpenAI has introduced Codex, a new AI coding agent powered by the codex-1 model (an optimized version of o3) that can write features, fix bugs, answer questions about codebases, and run tests in a sandboxed environment. Initially available to ChatGPT Pro, Enterprise, and Team subscribers with plans to expand access, Codex joins the competitive market of AI coding tools like Claude Code and Gemini Code Assist.