No — Lyon isn’t listed as a free font. Commercial Type releases it, so licence options and pricing sit on their site.
Lyon is a serif typeface from Commercial Type.
Start with Commercial Type’s other releases — Feature, Portrait, Caslon Rounded, and Review. They come from the same studio that drew Lyon, and A1 has 16 websites using them.
Lyon Text Roman was the centerpiece of Kai Bernau’s degree project at the Type + Media course at the Royal Academy of Art (KABK) in The Hague, but was extensively revised and expanded before its debut in the New York Times Magazine in 2009. Like many of the great seriffed typefaces it draws intelligently from the work of Robert Granjon, the master of the Renaissance, while having a contemporary feel. Its elegant looks are matched with an intelligent, anonymous nature, making it excellent for magazines, book and newspapers.
A1 features 3 websites using Lyon, including Wist, Origin, and Notion. They lean towards Sans-serif, Light, and Outline design styles, and they’re most often built with Next.js and Webflow.