No, that's not true either. Sorry.

SSI is Supplemental Security Income. It is a program administered by, but NOT funded by, the Social Security Administration. It is for two classes of people only..........A) those over 65 who never paid into Social Security (or didn't pay enough to be permanently insured), and B) those under 65 who never paid in either, but who can prove disability. This amount is $733 for every recipient, plus whatever your state MAY add to that.

Social Security Disability is for people either currently or permanently insured by Social Security and who can prove disability. When those people reach FRA, they cease to receive SS Disability payments and receive SS Retirement payments, at the same amount.