there are currently no major streaming platforms offering the full first season of Genius: Einstein completely for free in the U.S. without a subscription
(sometimes listed as 11 including specials) based on Walter Isaacson's biography Amazon.com Where to Buy (If Free Options are Unavailable) genius season 1 free
Hulu: Season 1 (Einstein) and Season 2 (Picasso) are often available here for subscribers. there are currently no major streaming platforms offering