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interesting that you say this. have you also tried out Franz Lisp? it is another commercial one.

• jonathankoren 3y ago
  Franz was too expensive :) Allegro had an academic license.
  • fuzztester 3y ago
    Okay. I think both you and I may have made a mistake about the product names. (I just corrected mine, which was in this same comment. Corrected info below.) I had tried out Allegro Common Lisp (which is from Franz, Inc.) and LispWorks Common Lisp, some years ago. Maybe sometime after Peter Seibel's book Practical Common Lisp came out. I had also tried out GNU Lisp at some point.
    • jonathankoren 3y ago
      Yeah. There are two. I definitely used Allegro, which apparently is from Franz. I remember that the other commercial one was very expensive. It’s been like 20 years ago. :)
      • _19qg 3y ago
        There are two companies: Franz Inc. and LispWorks Ltd. The Lisp development product of Franz Inc. is Allegro CL. https://franz.com/products/allegro-common-lisp/ https://franz.com/products/allegro-common-lisp/ The Lisp development product of LispWorks Ltd. is LispWorks. https://www.lispworks.com/products/lispworks.html https://www.lispworks.com/products/lispworks.html Both are kind of expensive. Both offer also academic licenses. "Franz Lisp" does not exist as a product since the 80s. Both Allegro CL and LispWorks are sold since the mid/end 80s and are still being maintained and sold.