The band made the album available Friday for download from its website. When /*Radiohead*/ announced the album release on Monday, the band said it would be out Saturday.
Fans can pre-order an MP3 download for $9 or a higher-quality WAV version for $14. For approximately $50, there's also an extensive vinyl edition with deluxe packaging.
Radiohead also released a black-and-white video for the song "Lotus Flower" off the new album.
The Associated Press contributed to this report.