Transformers acts as the model-definition framework for state-of-the-art machine learning models in text, computer vision, audio, video, and multimodal model, for both inference and training.
It centralizes the model definition so that this definition is agreed upon across the ecosystem. transformers
is the pivot across frameworks: if a model definition is supported, it will be compatible with the majority of training frameworks (Axolotl, Unsloth, DeepSpeed, FSDP, PyTorch-Lightning, …), inference engines (vLLM, SGLang, TGI, …), and adjacent modeling libraries (llama.cpp, mlx, …) which leverage the model definition from transformers
.
We pledge to help support new state-of-the-art models and democratize their usage by having their model definition be simple, customizable, and efficient.
There are over 1M+ Transformers model checkpoints on the Hugging Face Hub you can use.
Explore the Hub today to find a model and use Transformers to help you get started right away.
FeaturesTransformers provides everything you need for inference or training with state-of-the-art pretrained models. Some of the main features include:
Read our Philosophy to learn more about Transformers’ design principles.
Transformers is designed for developers and machine learning engineers and researchers. Its main design principles are:
If you’re new to Transformers or want to learn more about transformer models, we recommend starting with the LLM course. This comprehensive course covers everything from the fundamentals of how transformer models work to practical applications across various tasks. You’ll learn the complete workflow, from curating high-quality datasets to fine-tuning large language models and implementing reasoning capabilities. The course contains both theoretical and hands-on exercises to build a solid foundational knowledge of transformer models as you learn.
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