The Best Gymnasium Alternatives in 2026

Tensorforce provides a TensorFlow library for applied reinforcement learning tasks.

DyNet provides tools for building dynamic neural networks and deep learning models.

MII makes low-latency and high-throughput inference possible, powered by DeepSpeed.

The colibri-core NLP tool and library works with n-grams, skipgrams, and other linguistic patterns.

DEAP provides a Python framework for prototyping evolutionary computation algorithms and testing new ideas.

Extensible Toolkit for Finetuning and Inference of Large Foundation Models.

GPT-NeoX implements model parallel autoregressive transformers on GPUs using Megatron and DeepSpeed libraries.

Quilt manages scientific data on AWS with versioned data packages for teams and AI.

einops provides readable tensor operations for PyTorch, JAX, TensorFlow, and other frameworks.

Hyperopt supports distributed asynchronous hyperparameter optimization in Python.

CLIP-as-service provides scalable image and sentence embeddings, reasoning, and ranking with CLIP.

Tensors and Dynamic neural networks in Python with strong GPU acceleration.

Hopsworks provides a feature store and MLOps platform for building and operating production machine learning systems.

Run sandboxes, task queues, and custom model inference with ultrafast boot times, instant autoscaling, and a developer experience that just works.

Stakpak runs an agent on a machine to ship code and keep applications running.

Catniff provides JavaScript developers with a Torch-like deep learning framework.

Candle provides a minimalist Rust framework for machine learning model development and execution tasks.

Kubeflow provides a machine learning toolkit for deploying workflows on Kubernetes.

Build machine learning applications with Delta, an open-source framework implemented in Rust.

The Darknet neural network framework is written in C and CUDA and supports CPU and GPU computation.

Colibri runs mixture-of-experts language models on local hardware, streaming experts from disk with a small C engine.

GeneticSharp provides C# tools for developing applications that use genetic algorithms.

Glide provides an open model gateway for developing production generative AI applications.

onWatch tracks AI API quotas across providers and displays usage in real time through a lightweight background monitor.