State-of-the-art Machine Learning for PyTorch, TensorFlow, and JAX.
π€ Transformers provides APIs and tools to easily download and train state-of-the-art pretrained models. Using pretrained models can reduce your compute costs, carbon footprint, and save you the time and resources required to train a model from scratch. These models support common tasks in different modalities, such as:
π Natural Language Processing: text classification, named entity recognition, question answering, language modeling, summarization, translation, multiple choice, and text generation.
πΌοΈ Computer Vision: image classification, object detection, and segmentation.
π£οΈ Audio: automatic speech recognition and audio classification.
π Multimodal: table question answering, optical character recognition, information extraction from scanned documents, video classification, and visual question answering.
π€ Transformers support framework interoperability between PyTorch, TensorFlow, and JAX. This provides the flexibility to use a different framework at each stage of a modelβs life; train a model in three lines of code in one framework, and load it for inference in another. Models can also be exported to a format like ONNX and TorchScript for deployment in production environments.
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The documentation is organized into five sections:
GET STARTED provides a quick tour of the library and installation instructions to get up and running.
TUTORIALS are a great place to start if youβre a beginner. This section will help you gain the basic skills you need to start using the library.
HOW-TO GUIDES show you how to achieve a specific goal, like finetuning a pretrained model for language modeling or how to write and share a custom model.
CONCEPTUAL GUIDES offers more discussion and explanation of the underlying concepts and ideas behind models, tasks, and the design philosophy of π€ Transformers.
API describes all classes and functions:
The table below represents the current support in the library for each of those models, whether they have a Python tokenizer (called βslowβ). A βfastβ tokenizer backed by the π€ Tokenizers library, whether they have support in Jax (via Flax), PyTorch, and/or TensorFlow.
| Model | PyTorch support | TensorFlow support | Flax Support |
|---|---|---|---|
| ALBERT | β | β | β |
| ALIGN | β | β | β |
| AltCLIP | β | β | β |
| Audio Spectrogram Transformer | β | β | β |
| Autoformer | β | β | β |
| Bark | β | β | β |
| BART | β | β | β |
| BARThez | β | β | β |
| BARTpho | β | β | β |
| BEiT | β | β | β |
| BERT | β | β | β |
| Bert Generation | β | β | β |
| BertJapanese | β | β | β |
| BERTweet | β | β | β |
| BigBird | β | β | β |
| BigBird-Pegasus | β | β | β |
| BioGpt | β | β | β |
| BiT | β | β | β |
| Blenderbot | β | β | β |
| BlenderbotSmall | β | β | β |
| BLIP | β | β | β |
| BLIP-2 | β | β | β |
| BLOOM | β | β | β |
| BORT | β | β | β |
| BridgeTower | β | β | β |
| BROS | β | β | β |
| ByT5 | β | β | β |
| CamemBERT | β | β | β |
| CANINE | β | β | β |
| Chameleon | β | β | β |
| Chinese-CLIP | β | β | β |
| CLAP | β | β | β |
| CLIP | β | β | β |
| CLIPSeg | β | β | β |
| CLVP | β | β | β |
| CodeGen | β | β | β |
| CodeLlama | β | β | β |
| Cohere | β | β | β |
| Conditional DETR | β | β | β |
| ConvBERT | β | β | β |
| ConvNeXT | β | β | β |
| ConvNeXTV2 | β | β | β |
| CPM | β | β | β |
| CPM-Ant | β | β | β |
| CTRL | β | β | β |
| CvT | β | β | β |
| DAC | β | β | β |
| Data2VecAudio | β | β | β |
| Data2VecText | β | β | β |
| Data2VecVision | β | β | β |
| DBRX | β | β | β |
| DeBERTa | β | β | β |
| DeBERTa-v2 | β | β | β |
| Decision Transformer | β | β | β |
| Deformable DETR | β | β | β |
| DeiT | β | β | β |
| DePlot | β | β | β |
| Depth Anything | β | β | β |
| DETA | β | β | β |
| DETR | β | β | β |
| DialoGPT | β | β | β |
| DiNAT | β | β | β |
| DINOv2 | β | β | β |
| DistilBERT | β | β | β |
| DiT | β | β | β |
| DonutSwin | β | β | β |
| DPR | β | β | β |
| DPT | β | β | β |
| EfficientFormer | β | β | β |
| EfficientNet | β | β | β |
| ELECTRA | β | β | β |
| EnCodec | β | β | β |
| Encoder decoder | β | β | β |
| ERNIE | β | β | β |
| ErnieM | β | β | β |
| ESM | β | β | β |
| FairSeq Machine-Translation | β | β | β |
| Falcon | β | β | β |
| FalconMamba | β | β | β |
| FastSpeech2Conformer | β | β | β |
| FLAN-T5 | β | β | β |
| FLAN-UL2 | β | β | β |
| FlauBERT | β | β | β |
| FLAVA | β | β | β |
| FNet | β | β | β |
| FocalNet | β | β | β |
| Funnel Transformer | β | β | β |
| Fuyu | β | β | β |
| Gemma | β | β | β |
| Gemma2 | β | β | β |
| GIT | β | β | β |
| GLPN | β | β | β |
| GPT Neo | β | β | β |
| GPT NeoX | β | β | β |
| GPT NeoX Japanese | β | β | β |
| GPT-J | β | β | β |
| GPT-Sw3 | β | β | β |
| GPTBigCode | β | β | β |
| GPTSAN-japanese | β | β | β |
| Granite | β | β | β |
| Graphormer | β | β | β |
| Grounding DINO | β | β | β |
| GroupViT | β | β | β |
| HerBERT | β | β | β |
| Hiera | β | β | β |
| Hubert | β | β | β |
| I-BERT | β | β | β |
| IDEFICS | β | β | β |
| Idefics2 | β | β | β |
| ImageGPT | β | β | β |
| Informer | β | β | β |
| InstructBLIP | β | β | β |
| InstructBlipVideo | β | β | β |
| Jamba | β | β | β |
| JetMoe | β | β | β |
| Jukebox | β | β | β |
| KOSMOS-2 | β | β | β |
| LayoutLM | β | β | β |
| LayoutLMv2 | β | β | β |
| LayoutLMv3 | β | β | β |
| LayoutXLM | β | β | β |
| LED | β | β | β |
| LeViT | β | β | β |
| LiLT | β | β | β |
| LLaMA | β | β | β |
| Llama2 | β | β | β |
| Llama3 | β | β | β |
| LLaVa | β | β | β |
| LLaVA-NeXT | β | β | β |
| LLaVa-NeXT-Video | β | β | β |
| LLaVA-Onevision | β | β | β |
| Longformer | β | β | β |
| LongT5 | β | β | β |
| LUKE | β | β | β |
| LXMERT | β | β | β |
| M-CTC-T | β | β | β |
| M2M100 | β | β | β |
| MADLAD-400 | β | β | β |
| Mamba | β | β | β |
| mamba2 | β | β | β |
| Marian | β | β | β |
| MarkupLM | β | β | β |
| Mask2Former | β | β | β |
| MaskFormer | β | β | β |
| MatCha | β | β | β |
| mBART | β | β | β |
| mBART-50 | β | β | β |
| MEGA | β | β | β |
| Megatron-BERT | β | β | β |
| Megatron-GPT2 | β | β | β |
| MGP-STR | β | β | β |
| Mistral | β | β | β |
| Mixtral | β | β | β |
| mLUKE | β | β | β |
| MMS | β | β | β |
| MobileBERT | β | β | β |
| MobileNetV1 | β | β | β |
| MobileNetV2 | β | β | β |
| MobileViT | β | β | β |
| MobileViTV2 | β | β | β |
| MPNet | β | β | β |
| MPT | β | β | β |
| MRA | β | β | β |
| MT5 | β | β | β |
| MusicGen | β | β | β |
| MusicGen Melody | β | β | β |
| MVP | β | β | β |
| NAT | β | β | β |
| Nemotron | β | β | β |
| Nezha | β | β | β |
| NLLB | β | β | β |
| NLLB-MOE | β | β | β |
| Nougat | β | β | β |
| NystrΓΆmformer | β | β | β |
| OLMo | β | β | β |
| OLMoE | β | β | β |
| OneFormer | β | β | β |
| OpenAI GPT | β | β | β |
| OpenAI GPT-2 | β | β | β |
| OpenLlama | β | β | β |
| OPT | β | β | β |
| OWL-ViT | β | β | β |
| OWLv2 | β | β | β |
| PaliGemma | β | β | β |
| PatchTSMixer | β | β | β |
| PatchTST | β | β | β |
| Pegasus | β | β | β |
| PEGASUS-X | β | β | β |
| Perceiver | β | β | β |
| Persimmon | β | β | β |
| Phi | β | β | β |
| Phi3 | β | β | β |
| PhoBERT | β | β | β |
| Pix2Struct | β | β | β |
| PLBart | β | β | β |
| PoolFormer | β | β | β |
| Pop2Piano | β | β | β |
| ProphetNet | β | β | β |
| PVT | β | β | β |
| PVTv2 | β | β | β |
| QDQBert | β | β | β |
| Qwen2 | β | β | β |
| Qwen2Audio | β | β | β |
| Qwen2MoE | β | β | β |
| Qwen2VL | β | β | β |
| RAG | β | β | β |
| REALM | β | β | β |
| RecurrentGemma | β | β | β |
| Reformer | β | β | β |
| RegNet | β | β | β |
| RemBERT | β | β | β |
| ResNet | β | β | β |
| RetriBERT | β | β | β |
| RoBERTa | β | β | β |
| RoBERTa-PreLayerNorm | β | β | β |
| RoCBert | β | β | β |
| RoFormer | β | β | β |
| RT-DETR | β | β | β |
| RT-DETR-ResNet | β | β | β |
| RWKV | β | β | β |
| SAM | β | β | β |
| SeamlessM4T | β | β | β |
| SeamlessM4Tv2 | β | β | β |
| SegFormer | β | β | β |
| SegGPT | β | β | β |
| SEW | β | β | β |
| SEW-D | β | β | β |
| SigLIP | β | β | β |
| Speech Encoder decoder | β | β | β |
| Speech2Text | β | β | β |
| SpeechT5 | β | β | β |
| Splinter | β | β | β |
| SqueezeBERT | β | β | β |
| StableLm | β | β | β |
| Starcoder2 | β | β | β |
| SuperPoint | β | β | β |
| SwiftFormer | β | β | β |
| Swin Transformer | β | β | β |
| Swin Transformer V2 | β | β | β |
| Swin2SR | β | β | β |
| SwitchTransformers | β | β | β |
| T5 | β | β | β |
| T5v1.1 | β | β | β |
| Table Transformer | β | β | β |
| TAPAS | β | β | β |
| TAPEX | β | β | β |
| Time Series Transformer | β | β | β |
| TimeSformer | β | β | β |
| Trajectory Transformer | β | β | β |
| Transformer-XL | β | β | β |
| TrOCR | β | β | β |
| TVLT | β | β | β |
| TVP | β | β | β |
| UDOP | β | β | β |
| UL2 | β | β | β |
| UMT5 | β | β | β |
| UniSpeech | β | β | β |
| UniSpeechSat | β | β | β |
| UnivNet | β | β | β |
| UPerNet | β | β | β |
| VAN | β | β | β |
| VideoLlava | β | β | β |
| VideoMAE | β | β | β |
| ViLT | β | β | β |
| VipLlava | β | β | β |
| Vision Encoder decoder | β | β | β |
| VisionTextDualEncoder | β | β | β |
| VisualBERT | β | β | β |
| ViT | β | β | β |
| ViT Hybrid | β | β | β |
| VitDet | β | β | β |
| ViTMAE | β | β | β |
| ViTMatte | β | β | β |
| ViTMSN | β | β | β |
| VITS | β | β | β |
| ViViT | β | β | β |
| Wav2Vec2 | β | β | β |
| Wav2Vec2-BERT | β | β | β |
| Wav2Vec2-Conformer | β | β | β |
| Wav2Vec2Phoneme | β | β | β |
| WavLM | β | β | β |
| Whisper | β | β | β |
| X-CLIP | β | β | β |
| X-MOD | β | β | β |
| XGLM | β | β | β |
| XLM | β | β | β |
| XLM-ProphetNet | β | β | β |
| XLM-RoBERTa | β | β | β |
| XLM-RoBERTa-XL | β | β | β |
| XLM-V | β | β | β |
| XLNet | β | β | β |
| XLS-R | β | β | β |
| XLSR-Wav2Vec2 | β | β | β |
| YOLOS | β | β | β |
| YOSO | β | β | β |
| ZoeDepth | β | β | β |