- skutil - A set of scikit-learn and h2o extension classes (as well as caret classes for python)
- brew - Python Ensemble Learning API
- minpy - NumPy interface with mixed backend execution.
- CNTK - Microsoft Cognitive Toolkit (CNTK), an open source deep-learning toolkit.
- Neon - Intel® Nervana™ reference deep learning framework committed to best performance on all hardware.
- Chainer - A flexible framework for neural networks.
- ChainerCV - A Library for Deep Learning in Computer Vision.
- ChainerMN - Scalable distributed deep learning with Chainer. WARNING: Theano development has been stopped
- Theano - A Python library that allows you to define, optimize, and evaluate mathematical expressions.
- Lasagne - Lightweight library to build and train neural networks in Theano.
- nolearn - A scikit-learn compatible neural network library (mainly for Lasagne).
- Blocks - A Theano framework for building and training neural networks.
- scikit-neuralnetwork - Deep neural networks without the learning cliff.
- platoon - Multi-GPU mini-framework for Theano.
- Theano-MPI - MPI Parallel framework for training deep learning models built in Theano.
- Caffe2 - A lightweight, modular, and scalable deep learning framework (now a part of PyTorch).
- gelato - Bayesian dessert for Lasagne.