What Is Spec-Driven Development (SDD)? In-Depth Comparison of Open-Source Frameworks: BMAD vs spec-kit vs OpenSpec vs PromptX
October 21, 2025 by Remy
This article delves into the transformative methodology of Spec-Driven Development (SDD) and provides a deep dissection and strategic comparison of four trend-setting open-source projects—BMAD-METHOD, GitHub's spec-kit, OpenSpec, and PromptX.