GPT Engineer

GPT Engineer is an MIT‑licensed, open-source command-line tool that empowers developers to generate and refine complete codebases using natural language prompts. Users simply create a prompt file with their desired specification, and GPT Engineer iteratively interacts—asking clarification questions and producing working code. It's designed around a modular architecture (steps.py) that allows custom AI workflows, supports vision-capable prompts, logs execution steps for resumability, and integrates with both OpenAI (GPT‑4/Anthropic) and compatible open models .