Implements CL for Linux on x86 hardware, has large CL subset as a shared library that can link with Lisp and C code to make efficient, small programs; suitable for embedding in other programs.
Not a CL system, compiles Lisp programs into working C programs; is coded in Lisp; supports strict, very large subset of CL + CLOS. Descriptions, documents, downloads. [Open Source, GPL]
Experimental implementation of parallel functional programming. Built as a hybrid architecture, uses simple Lisp interpreter to drive the compiler, and wraps calls to the Graph-reduction VM.