Open Source AI Tools logopeterindia.net
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Open Source AI Tools

Open source frameworks, libraries and runtimes for building and running AI, with a note on which older tools have gone quiet.

31 topics•5 categories•Updated October 2026

Frameworks & Libraries

9 entries

Build and train models.

01PyTorchDeep learning framework. 02TensorFlowEnd-to-end machine learning platform from Google. 03JAXComposable NumPy-style array programming with autodiff. 04scikit-learnMachine learning library for Python. 05Hugging Face TransformersPretrained models for text, vision, audio and multimodal tasks. 06spaCyIndustrial-strength natural language processing in Python. 07PaddleNLPNatural language processing library on PaddlePaddle. 08DeepPavlovConversational AI library; the last repository commit was in November 2024. 09RayDistributed computing framework for AI workloads.

Inference & Local Models

5 entries

Run models efficiently.

10vLLMHigh-throughput inference engine for large language models. 11llama.cppInference of language models in C/C++ on a wide range of hardware. 12OllamaTool for running open models locally. 13ONNX RuntimeCross-platform inference engine. 14FauxPilot (inactive)Self-hosted code completion server; the last repository commit was in May 2023.

Vision, Speech & Generative Media

7 entries

Models and tools for images, audio and video.

15OpenCVComputer vision library. 16UltralyticsMaintainers of the YOLO model family; the repository is very active. 17YOLOv7 (inactive)Object detection model; the last repository commit was in November 2023. 18WhisperOpen speech recognition model from OpenAI. 19ComfyUINode-based interface for image and video generation models. 20Image Super-Resolution (archived)Image upscaling library; archived by its owner in January 2025. 21BlenderOpen source 3D creation suite.

MLOps & Applications

3 entries

Track, deploy and build with models.

22MLflowExperiment tracking and the machine learning lifecycle. 23LangChainFramework for LLM applications and agents. 24MindsDBPlatform for connecting AI models to data; its site now redirects to mindshub.ai, so check the current offering.

Related Pages

7 entries

Neighbouring pages on this site.

25Open-Source LLMsOpen-weight language models. 26Open Source MLOps PlatformsOpen source MLOps platforms. 27Open Source SoftwareOpen source software directory. 28ML FrameworksMachine learning frameworks. 29DL FrameworksDeep learning frameworks. 30Inference EnginesInference engines. 31Artificial IntelligenceAI hub.

Frequently Asked Questions

What are open source AI tools?

They are AI frameworks, libraries and runtimes released under open source licences, from deep learning frameworks such as PyTorch to inference engines such as vLLM and llama.cpp.

Is an open-weight model the same as open source?

Not necessarily. Many models publish weights under custom licences that restrict use, while an open source licence meets the Open Source Definition. Check each model's licence.

Which tools were removed from this page?

DALL·E was removed because OpenAI's current DALL·E models are not open source. DeepFaceLab was removed because its repository was archived in November 2024.

How do I tell if an open source project is still maintained?

Check the date of recent commits and releases, whether the repository is archived, and how quickly issues are answered. Cards on this page note projects that have gone quiet.

How current is this page?

Links and project status were checked in October 2026. Licences and project status change, so confirm the licence of any project you adopt. Sites that block automated checks are kept and may need a manual click.