GM halves dev cycles with AI

GM was reported to have halved its vehicle-development cycle using AI. The signal comes from an IEEE Spectrum report backed by three arXiv papers—press and academia rather than an official announcement, a case study with research support. The focus is manufacturing application: embedding models across design, simulation, and validation to cut prototype iterations and compress the cycle. The through-line is generative AI landing from research and announcements into a stage of real industrial-process efficiency. Whether the halving generalizes or spreads to other makers can't be concluded from a single case—it awaits accumulation.