Harvard Gazette: 92% of US Developers Now Use Vibe Coding, $8.5B Projected Market — But 45% of AI Code Has Vulnerabilities

Harvard Gazette·medium signal

Harvard professor Karen Brennan published research in the Harvard Gazette on vibe coding's implications for AI's future, based on a six-week course she taught. Key data: 92% of US-based developers have adopted some form of vibe coding, the global market is projected to reach $8.5B in 2026, and speed gains of 3-5x for prototyping are real — but up to 45% of AI-generated code contains security vulnerabilities, creating a significant quality gap.