[abahlo]

Sonyflakes are generally more useful in massive scale environments as you won't run into conflicts due to the "machine-id" part (which defaults to the lower 16 bits of the private IP address).

There are more differences (128bit vs 64bit, rng vs time-based), I think they have different use cases.

[eutectic]

You shouldn't ever have a collision with 128 bits of entropy.

[j-pb]

More structure actually increases the chance for collisions. Because at that scale the chance of bit errors is dominating the equation. More rng protects against that.

[ComputerGuru]

Ulid doesn’t have a “machine id” or “node id” component. I think you are mixing it up with one of the uuid variants.