Google updates these direct links continuously. To find the current stable bin image payload:

This comprehensive guide will explain how ChromeOS Flex images work, how to download the recovery files directly, and how to create a bootable USB drive to revive your old computer. The Reality of the "ChromeOS Flex ISO"

Fast boot times and no slow-down over time ChromeOS Flex Help .

To install and run Chrome OS Flex, your target device must meet these specifications: