Open-weight models account for 71.5 percent of tokens processed by the Vercel AI Gateway, according to the source report.
Their share of spend rose from about one dollar in twenty in June to nearly one in four in September.
Source: theregister.com, reported 10-17. https://www.theregister.com/ai-and-ml/2026/10/17/open-weight-models-win-hearts-minds-and-wallets/5303704