Transformers

Judgement

What it is

Framework or platform

What it does

A library of model definitions and pretrained weights for text, vision, audio and multimodal models, for inference and training.

Adopt it when

You want to load, run or fine-tune open models from the Hugging Face Hub in Python.

Watch out

Fast-moving with frequent API changes, and not the fastest option for production serving.

Ready for

Production-ready

Runs as

Library

Built with

Python and PyTorch

How established

Established: started 8 years ago, latest release v5.22.1.

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: Transformers → CPython → GCC → LLVM project → runs on a microchip

How compilers were built, back to punched paper tape

Built on Transformers: 9 projects

1. 1
   Manga Image Translator zyddnys

   Translate manga/image 一键翻译各类图片内文字 https://cotrans.touhou.ai/ (no longer working)

   Complete system Usable You want machine-translated manga pages and can run a GPU model locally.

   ★ 11k GPL-3.0 Python Active, pushed 22 days ago
2. 2
   FastDeploy PaddlePaddle

   High-performance Inference and Deployment Toolkit for LLMs and VLMs based on PaddlePaddle

   Building block Usable You deploy ERNIE or other PaddlePaddle models, especially on Chinese hardware.

   ★ 3.7k Apache-2.0 Python Active, pushed 39 days ago
3. 3
   OSWorld xlang-ai

   [NeurIPS 2024] OSWorld: Benchmarking Multimodal Agents for Open-Ended Tasks in Real Computer Environments

   Developer tool Usable You research or build computer-use agents and need a standard way to measure them.

   ★ 3.2k Apache-2.0 Python Active, pushed today
4. 4
   vLLM Ascend vllm-project

   Community maintained hardware plugin for vLLM on Huawei Ascend

   Integration Usable You have Huawei Ascend accelerators and want to use vLLM on them.

   ★ 3k Apache-2.0 Python Active, pushed today
5. 5
   Mosec mosecorg

   A high-performance ML model serving framework, offers dynamic batching and CPU/GPU pipelines to fully exploit your compute machine

   Framework or platform Usable You need to put custom PyTorch or TensorFlow models behind an efficient HTTP API with batching.

   ★ 903 Apache-2.0 Python Active, pushed today
6. 6
   Parallax GradientHQ

   Parallax is a distributed model serving framework that lets you build your own AI cluster anywhere

   Building block Experimental You want to experiment with running large models across several consumer machines.

   ★ 1.4k Apache-2.0 Python Slowing, pushed 4 months ago
7. 7
   ZhiLight zhihu

   A highly optimized LLM inference acceleration engine for Llama and its variants.

   Building block Experimental You run Llama or DeepSeek models on PCIe consumer or data-centre GPUs and want to benchmark against vLLM.

   ★ 906 Apache-2.0 C++ Slowing, pushed 8 months ago
8. 8
   Flama vortico

   The production framework for Predictive and Generative AI. Serve any model as an API in one line, with OpenAI/Anthropic/Ollama-compatible endpoints, a built-in chat UI, and native MCP.

   Framework or platform Usable You want one framework to expose scikit-learn, PyTorch or LLM models as production APIs with little code.

   ★ 304 Apache-2.0 Python Active, pushed today
9. 9
   open-tutor-ai-CE Open-TutorAi

   An open-source project designed to provide an educational and collaborative AI-powered platform

   Complete system Experimental An education team wants to experiment with an AI tutor it can host.

   ★ 72 BSD-3-Clause JavaScript Slowing, pushed 4 months ago

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7. 7
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8. 8
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