- AIMA - Code for Artificial Intelligence: A Modern Approach
 - CL-ID3 - CL-ID3 is a pure Common Lisp implementation of the well-known ID3 AI/data-mining algorithm
 - CLPfAI - Common Lisp Programming for Artificial Intelligence
 - decisiontree - This package provides an implementation of an algorithm that creates a decision tree
 - LISA - Lisp Intelligent Software Agents - is a production rule system for Common Lisp
 - Surf-Hippo - The Surf-Hippo Neuron Simulation System is an AI application for investigating models of single neurons and networks of neurons
 
Artificial Intelligence
See AI.