Lists of open-source artificial intelligence software

These lists include projects which release at least some of their software under open-source licenses and are related to artificial intelligence projects. 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.

Machine learning or data mining

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

AutoML platforms

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

Deep learning frameworks

TensorFlow – end-to-end open-source platform for machine learning developed by Google Brain^[1]
PyTorch – deep learning framework developed by Meta AI^[1]
PyTorch Lightning – high-level framework built on top of PyTorch for organizing and scaling deep learning models
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
Fast Artificial Neural Network (FANN) – C library for feedforward artificial neural networks

Convolutional neural networks (CNNs)

AlexNet — pioneering CNN for image classification, won the 2012 ImageNet competition
VGGNet — deep CNN known for its simplicity and use of 3x3 convolution filters
Inception — CNN architecture using parallel convolutional layers of different sizes

Artificial neural networks

EDLUT – event-driven neural network simulator for large-scale spiking networks
Emergent – cognitive modeling platform implementing connectionist neural networks
Encog – machine learning framework for Java and C# supporting neural networks
JOONE – Java-based neural network framework with modular architecture for learning tasks
Nengo – Python library for building and simulating large-scale neural systems
Neuroph – lightweight Java framework for creating neural networks
OpenNN – C++ library for designing, training, and deploying neural networks
SNNS – Stuttgart Neural Network Simulator, supports feedforward and recurrent neural networks

Cognitive architectures and AGI platforms

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.

Reinforcement learning frameworks

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

Reactive planning

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

Computer vision and image processing

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

Natural language processing (NLP)

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

Speech recognition systems

Large language models

Apertus^[2]
DeepSeek — R1 and V3 models^[3]
GPT-J – EleutherAI
GPT-1 and GPT-2 — OpenAI LLM
XLNet — Google LLM
BERT — Google LLM
T5 — Google LLM
OLMo — Allen Institute for AI LLM
Latam-GPT — Latin America-focused model^[4]^[5]

Transformer libraries

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^[6]^{[additional citation(s) needed]}
OpenNMT – neural machine translation framework that supports transformer architectures^[7]^{[additional citation(s) needed]}

Chat bots

Agentic AI

OpenClaw — autonomous task-executing AI agent framework
Auto-GPT — experimental open-source autonomous GPT-based agent
BabyAGI — lightweight task-planning autonomous agent^[8]
MetaGPT — multi-agent software development framework^[9]
SuperAGI — framework for autonomous AI workflows^[10]
CrewAI — multi-agent orchestration framework for AI agents^[11]

Text to speech

Text to image

AI hardware and inference acceleration

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

Robotics software

References

^ ^a ^b Costa, Carlos J.; Aparicio, Manuela; Aparicio, Sofia; Aparicio, Joao Tiago (January 2024). "The Democratization of Artificial Intelligence: Theoretical Framework". Applied Sciences. 14 (18): 8236. doi:10.3390/app14188236. hdl:10362/173131. ISSN 2076-3417.
^ Allen, Matthew (2025-09-02). "Switzerland launches transparent ChatGPT alternative". SWI swissinfo.ch. Retrieved 2026-01-21. Apertus (from the Latin word meaning "open") leaves nothing to the imagination in this respect. It promises that every nut and bolt is open for public scrutiny along with its design manual and recipe formula.
^ model weights only
^ Lagos, Anna (September 1, 2025). "Latam-GPT: The Free, Open Source, and Collaborative AI of Latin America". Wired. ISSN 1059-1028. Retrieved 2025-10-08.
^ Osborn, Catherine (2025-12-22). "Where Does Latin America Stand in the Global AI Race?". Foreign Policy (magazine). Retrieved 2025-12-05.
^ "FAIRSEQ: A Fast, Extensible Toolkit for Sequence Modeling". research.facebook.com. 2019-06-03.
^ "OpenNMT". opennmt.net.
^ https://github.com/yoheinakajima/babyagi
^ https://github.com/FoundationAgents/MetaGPT
^ https://github.com/TransformerOptimus/SuperAGI
^ https://github.com/crewAIInc/crewAI

External links

opensource.org/ai – Open Source Initiative
Data and AI White paper (July 24, 2024) – Open Data Institute

[:0-1] Costa, Carlos J.; Aparicio, Manuela; Aparicio, Sofia; Aparicio, Joao Tiago (January 2024). "The Democratization of Artificial Intelligence: Theoretical Framework". Applied Sciences. 14 (18): 8236. doi:10.3390/app14188236. hdl:10362/173131. ISSN 2076-3417.

[2] Allen, Matthew (2025-09-02). "Switzerland launches transparent ChatGPT alternative". SWI swissinfo.ch. Retrieved 2026-01-21. Apertus (from the Latin word meaning "open") leaves nothing to the imagination in this respect. It promises that every nut and bolt is open for public scrutiny along with its design manual and recipe formula.

[3] weights only

[4] Lagos, Anna (September 1, 2025). "Latam-GPT: The Free, Open Source, and Collaborative AI of Latin America". Wired. ISSN 1059-1028. Retrieved 2025-10-08.

[5] Osborn, Catherine (2025-12-22). "Where Does Latin America Stand in the Global AI Race?". Foreign Policy (magazine). Retrieved 2025-12-05.

[6] "FAIRSEQ: A Fast, Extensible Toolkit for Sequence Modeling". research.facebook.com. 2019-06-03.

[7] "OpenNMT". opennmt.net.

[8] ttps://github.com/yoheinakajima/babyagi

[9] ttps://github.com/FoundationAgents/MetaGPT

[10] ttps://github.com/TransformerOptimus/SuperAGI

[11] ttps://github.com/crewAIInc/crewAI

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Epstein Files Full PDF

Machine learning or data mining

AutoML platforms

Deep learning frameworks

Convolutional neural networks (CNNs)

Artificial neural networks

Cognitive architectures and AGI platforms

Reinforcement learning frameworks

Reactive planning

Computer vision and image processing

Natural language processing (NLP)

Speech recognition systems

Large language models

Transformer libraries

Chat bots

Agentic AI

Text to speech

Text to image

AI hardware and inference acceleration

Robotics software

See also

References

External links