I mean they both don’t have a definitive belief there is a god, one is just more certain than the other. But for classification purposes I would say they are different.

They didn’t say they were

They are, however, “pretty much” the same thing.

Most self-described atheists are also agnostic. That is, they don’t claim to KNOW that they are right not to believe.

Most self-described agnostics are also atheists. That is, they are not theists.

Both can generally be described as agnostic atheists, as can most rational non believers.