In a place where technical cofounders are very common (e.g. Silicon Valley), probably equal across all founders. Where tech cofounders are rarer (e.g. SE Asia),

In a place where technical cofounders are very common (e.g. Silicon Valley), probably equal across all founders. Where tech cofounders are rarer (e.g. SE Asia), we usually take a larger portion, but not too much that the other founders are demotivated. It's quite common for the CTO to have a higher share than the CEO here.