It's in the CL standard, and compliant implementations support it. SBCL, LispWorks, Allegro, CCL, and others all do AOT native compilation, from the REPL and via eval (which should be avoided, in any case). ABCL does AOT compilation to JVM bytecode, and Clisp to its own bytecode.

It's a cool feature for Nim to have, but claiming to be the first makes them look bad.