That's not the same though, I believe most countries have a guaranteed minimum income (520 euros in France) but unlike basic income, minimum income is not unconditional.

It disappears if you earn money from a job, which creates (some) disincentive to find a job, and requires elaborate rules to reduce this disincentive (like reducing the benefit progressively relative to the total income, etc).

Basic income on the other hand is unconditional, so whatever job you have you won't feel like you're losing on benefits (at least, that's the idea).