Lists of open-source artificial intelligence software

This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations. (July 2025) (Learn how and when to remove this message)

These are lists of open-source artificial intelligence software packages related to AI projects released under open-source licenses. These include software libraries, frameworks, platforms, and tools used for machine learning, deep learning, natural language processing, computer vision, reinforcement learning, artificial general intelligence, and more.

• Caffe — Image classification and image segmentation
• Scikit-learn — library built on top of NumPy, SciPy, and matplotlib
• Shogun — C++ library for large-scale machine learning
• mlpack — C++ header-only machine learning library
• Weka — collection of machine learning algorithms for data mining tasks
• Apache Mahout — scalable machine learning library for big data built on Hadoop and Spark
• Apache SystemDS — ML system for the end-to-end data science lifecycle
• Jubatus — online machine learning and distributed computing framework
• KNIME — modular data pipelining
• Orange (software) — machine learning, data mining, data visualization, and data analysis.
• RapidMiner — predictive analytics
• fastText – Word embeddings developed by Meta AI
• XGBoost — machine learning library for gradient boosting^[1]

• TPOT – tree-based pipeline optimization tool using genetic programming
• Neural Network Intelligence – Microsoft toolkit for hyperparameter tuning and neural architecture search
• MindsDB – AutoML platform that embeds machine learning into SQL databases and applications^[2]

• TensorFlow – end-to-end open-source platform for machine learning developed by Google Brain
• PyTorch – deep learning framework developed by Meta AI
• Keras – Python library for artificial neural networks and integrated into TensorFlow library
• MXNet – framework that trains and deploys deep neural networks
• Caffe – deep learning framework focused on speed and modularity
• Chainer – Python framework on top of NumPy and CuPy
• Theano – Python library and optimizing compiler for evaluating mathematical expressions and optimized for GPUs
• Deeplearning4j – Java library for the Java virtual machine and deep learning algorithms
• Neuroph – object-oriented artificial neural network framework written in Java
• OpenNN – C++ library which implements Neural networks
• Fast Artificial Neural Network (FANN) – C library for feedforward artificial neural networks

• OpenCog – project that aims to build an open source artificial intelligence framework
• Soar – cognitive architecture for decision-making and learning in Intelligent agents
• CLARION – Connectionist Learning with Adaptive Rule Induction On-line, hybrid connectionist/symbolic cognitive architecture.

• KataGo – reinforcement learning agent designed for playing the game of Go

• GOLOG – logic programming language, situation calculus, first-order logical language for reasoning about action and change.

• AForge.NET – computer vision, artificial intelligence, and robotics library for the .NET framework
• Dlib – C++ library for computer vision and image processing
• OpenCV — library of programming functions mainly for real-time computer vision
• Tesseract – optical character recognition

• Apache OpenNLP
• Apertium – rule-based machine translation platform.
• ChatScript – natural language engine and dialog management system
• General Architecture for Text Engineering – information extraction
• Gensim – topic modeling and document similarity analysis library
• GloVe – unsupervised learning algorithm for obtaining vector representations of words
• Mallet – Java "Machine Learning for Language Toolkit"
• MontyLingua – libraries and programs for symbolic and statistical NLP for both Python and Java
• Moses – statistical machine translation engine to train statistical models of text from a source language to a target language
• NiuTrans – statistical machine translation
• NLTK – natural Language toolkit for symbolic and statistical NLP
• Probabilistic Action Cores – interpreter for natural-language instructions for robotic applications
• spaCy – Python library
• Spark NLP – text processing library for advanced NLP for Python, Java, and Scala.
• Word2vec – obtaining vector representations of words

• CMU Sphinx
• DeepSpeech
• Whisper

• DeepSeek — R1 and V3 models
• GPT-J – 6B parameter transformer model developed by EleutherAI
• GPT-1 — OpenAI LLM
• GPT-2 — OpenAI LLM
• XLNet — Google LLM
• BERT — Google LLM
• T5 — Google LLM

• Hugging Face transformers library – Python library of pretrained transformer models for NLP, computer vision, speech, and more.
• Fairseq – Facebook AI Research's sequence-to-sequence learning toolkit for training custom transformer models^[3]
• OpenNMT – neural machine translation framework that supports transformer architectures^[4]

• LAION OpenAssistant
• Mycroft

• Festival Speech Synthesis System
• WaveNet
• eSpeak

• Flux
• Stable Diffusion

• OpenVINO – Intel's toolkit for optimizing deep learning models for edge devices
• ONNX – Open Neural Network Exchange format for interoperability between AI frameworks

• ArduPilot
• CoppeliaSim
• Gazebo
• Mobile Robot Programming Toolkit
• OpenRTM-aist
• Paparazzi Project
• Player Project
• Python Robotics
• Robot Operating System
• TurtleBot
• Webots

• List of artificial intelligence journals and List of artificial intelligence books
• List of artificial intelligence projects
• List of free and open-source software packages for artificial intelligence
• Open-source artificial intelligence
• Common Crawl – nonprofit that crawls the web and freely provides its archives and datasets to the public under an MIT License
• Google Colab – an O-IDE Jupyter notebook environment with free access to GPUs and TPUs for machine learning and deep learning development

• opensource.org/ai – Open Source Initiative
• Open Data Institute - data and AI whitepaper – Open Data Institute
• Top 23 AI Open Source Software Libraries
• 15 Top Open Source AI Platforms and Tools [+Tips for Using]