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*This model was released on 2021-02-26 and added to Hugging Face Transformers on 2021-05-12.*

<div style="float: right;">
    <div class="flex flex-wrap space-x-1">
        <img alt="PyTorch" src="https://img.shields.io/badge/PyTorch-DE3412?style=flat&logo=pytorch&logoColor=white">
        <img alt="FlashAttention" src="https://img.shields.io/badge/%E2%9A%A1%EF%B8%8E%20FlashAttention-eae0c8?style=flat">
        <img alt="SDPA" src="https://img.shields.io/badge/SDPA-DE3412?style=flat&logo=pytorch&logoColor=white">
    </div>
</div>

# CLIP

[CLIP](https://huggingface.co/papers/2103.00020) is a is a multimodal vision and language model motivated by overcoming the fixed number of object categories when training a computer vision model. CLIP learns about images directly from raw text by jointly training on 400M (image, text) pairs. Pretraining on this scale enables zero-shot transfer to downstream tasks. CLIP uses an image encoder and text encoder to get visual features and text features. Both features are projected to a latent space with the same number of dimensions and their dot product gives a similarity score.

You can find all the original CLIP checkpoints under the [OpenAI](https://huggingface.co/openai?search_models=clip) organization.

> [!TIP]
> Click on the CLIP models in the right sidebar for more examples of how to apply CLIP to different image and language tasks.

The example below demonstrates how to calculate similarity scores between multiple text descriptions and an image with [`Pipeline`] or the [`AutoModel`] class.

<hfoptions id="usage">
<hfoption id="Pipeline">

```py
import torch
from transformers import pipeline

clip = pipeline(
   task="zero-shot-image-classification",
   model="openai/clip-vit-base-patch32",
   dtype=torch.bfloat16,
   device=0
)
labels = ["a photo of a cat", "a photo of a dog", "a photo of a car"]
clip("http://images.cocodataset.org/val2017/000000039769.jpg", candidate_labels=labels)
```

</hfoption>
<hfoption id="AutoModel">

```py
import requests
import torch
from PIL import Image
from transformers import AutoProcessor, AutoModel

model = AutoModel.from_pretrained("openai/clip-vit-base-patch32", dtype=torch.bfloat16, attn_implementation="sdpa")
processor = AutoProcessor.from_pretrained("openai/clip-vit-base-patch32")

url = "http://images.cocodataset.org/val2017/000000039769.jpg"
image = Image.open(requests.get(url, stream=True).raw)
labels = ["a photo of a cat", "a photo of a dog", "a photo of a car"]

inputs = processor(text=labels, images=image, return_tensors="pt", padding=True)

outputs = model(**inputs)
logits_per_image = outputs.logits_per_image
probs = logits_per_image.softmax(dim=1)
most_likely_idx = probs.argmax(dim=1).item()
most_likely_label = labels[most_likely_idx]
print(f"Most likely label: {most_likely_label} with probability: {probs[0][most_likely_idx].item():.3f}")
```

</hfoption>
</hfoptions>

## Notes

- Use [`CLIPImageProcessor`] to resize (or rescale) and normalizes images for the model.

## CLIPConfig

[[autodoc]] CLIPConfig

## CLIPTextConfig

[[autodoc]] CLIPTextConfig

## CLIPVisionConfig

[[autodoc]] CLIPVisionConfig

## CLIPTokenizer

[[autodoc]] CLIPTokenizer
    - get_special_tokens_mask
    - save_vocabulary

## CLIPTokenizerFast

[[autodoc]] CLIPTokenizerFast

## CLIPImageProcessor

[[autodoc]] CLIPImageProcessor
    - preprocess

## CLIPImageProcessorPil

[[autodoc]] CLIPImageProcessorPil
    - preprocess

## CLIPProcessor

[[autodoc]] CLIPProcessor
    - __call__

## CLIPModel

[[autodoc]] CLIPModel
    - forward
    - get_text_features
    - get_image_features

## CLIPTextModel

[[autodoc]] CLIPTextModel
    - forward

## CLIPTextModelWithProjection

[[autodoc]] CLIPTextModelWithProjection
    - forward

## CLIPVisionModelWithProjection

[[autodoc]] CLIPVisionModelWithProjection
    - forward

## CLIPVisionModel

[[autodoc]] CLIPVisionModel
    - forward

## CLIPForImageClassification

[[autodoc]] CLIPForImageClassification
    - forward
