SigLIP (original) (raw)

SigLIP is a multimodal image-text model similar to CLIP. It uses separate image and text encoders to generate representations for both modalities.

Unlike CLIP, SigLIP employs a pairwise sigmoid loss on image-text pairs during training. This training loss eliminates the need for a global view of all pairwise similarities between images and texts within a batch. Consequently, it enables more efficient scaling to larger batch sizes while also delivering superior performance with smaller batch sizes.

You can find all the original SigLIP checkpoints under the SigLIP collection.

Click on the SigLIP models in the right sidebar for more examples of how to apply SigLIP to different image and text tasks.

The example below demonstrates how to generate similarity scores between texts and image(s) with Pipeline or the AutoModel class.

import torch from transformers import pipeline

image = "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/pipeline-cat-chonk.jpeg" candidate_labels = ["a Pallas cat", "a lion", "a Siberian tiger"]

pipeline = pipeline(task="zero-shot-image-classification", model="google/siglip-base-patch16-224", device=0, torch_dtype=torch.bfloat16) pipeline(image, candidate_labels=candidate_labels)

Quantization reduces the memory burden of large models by representing the weights in a lower precision. Refer to the Quantization overview for more available quantization backends.

The example below uses bitsandbytes to only quantize the weights to int4.

import torch import requests from PIL import Image from transformers import AutoProcessor, AutoModel, BitsAndBytesConfig

bnb_config = BitsAndBytesConfig(load_in_4bit=True) model = AutoModel.from_pretrained("google/siglip-base-patch16-224", quantization_config=bnb_config, device_map="auto", attn_implementation="sdpa") processor = AutoProcessor.from_pretrained("google/siglip-base-patch16-224")

url = "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/pipeline-cat-chonk.jpeg" image = Image.open(requests.get(url, stream=True).raw) candidate_labels = ["a Pallas cat", "a lion", "a Siberian tiger"] texts = [f'This is a photo of {label}.' for label in candidate_labels] inputs = processor(text=texts, images=image, padding="max_length", return_tensors="pt").to("cuda")

with torch.no_grad(): outputs = model(**inputs)

logits_per_image = outputs.logits_per_image probs = torch.sigmoid(logits_per_image) print(f"{probs[0][0]:.1%} that image 0 is '{candidate_labels[0]}'")

Notes

• Training is supported for DDP and FSDP on single-node multi-GPU setups. However, it does not use torch.distributed utilities which may limit the scalability of batch size.
• When using the standalone SiglipTokenizer or SiglipProcessor, make sure to pass padding="max_length" because that is how the model was trained.
• To get the same results as the Pipeline, a prompt template of "This is a photo of {label}." should be passed to the processor.
• Toggle the attn_implementation parameter to either "sdpa" or "flash_attention_2" to use a more memory-efficient attention.
  from transformers import SiglipModel
  model = SiglipModel.from_pretrained(
  "google/siglip-so400m-patch14-384",
  attn_implementation="flash_attention_2",
  torch_dtype=torch.float16,
  device_map=device,
  )

SiglipConfig

class transformers.SiglipConfig

< source >

( text_config = None vision_config = None **kwargs )

Parameters

• text_config (dict, optional) — Dictionary of configuration options used to initialize SiglipTextConfig.
• vision_config (dict, optional) — Dictionary of configuration options used to initialize SiglipVisionConfig.
• kwargs (optional) — Dictionary of keyword arguments.

SiglipConfig is the configuration class to store the configuration of a SiglipModel. It is used to instantiate a Siglip model according to the specified arguments, defining the text model and vision model configs. Instantiating a configuration with the defaults will yield a similar configuration to that of the Siglipgoogle/siglip-base-patch16-224 architecture.

Configuration objects inherit from PretrainedConfig and can be used to control the model outputs. Read the documentation from PretrainedConfig for more information.

Example:

from transformers import SiglipConfig, SiglipModel

configuration = SiglipConfig()

model = SiglipModel(configuration)

configuration = model.config

from transformers import SiglipTextConfig, SiglipVisionConfig

config_text = SiglipTextConfig() config_vision = SiglipVisionConfig()

config = SiglipConfig.from_text_vision_configs(config_text, config_vision)

from_text_vision_configs

< source >

( text_config: SiglipTextConfig vision_config: SiglipVisionConfig **kwargs ) → SiglipConfig

An instance of a configuration object

Instantiate a SiglipConfig (or a derived class) from siglip text model configuration and siglip vision model configuration.

SiglipTextConfig

class transformers.SiglipTextConfig

< source >

( vocab_size = 32000 hidden_size = 768 intermediate_size = 3072 num_hidden_layers = 12 num_attention_heads = 12 max_position_embeddings = 64 hidden_act = 'gelu_pytorch_tanh' layer_norm_eps = 1e-06 attention_dropout = 0.0 pad_token_id = 1 bos_token_id = 49406 eos_token_id = 49407 projection_size = None **kwargs )

Parameters

• vocab_size (int, optional, defaults to 32000) — Vocabulary size of the Siglip text model. Defines the number of different tokens that can be represented by the inputs_ids passed when calling SiglipModel.
• hidden_size (int, optional, defaults to 768) — Dimensionality of the encoder layers and the pooler layer.
• intermediate_size (int, optional, defaults to 3072) — Dimensionality of the “intermediate” (i.e., feed-forward) layer in the Transformer encoder.
• num_hidden_layers (int, optional, defaults to 12) — Number of hidden layers in the Transformer encoder.
• num_attention_heads (int, optional, defaults to 12) — Number of attention heads for each attention layer in the Transformer encoder.
• max_position_embeddings (int, optional, defaults to 64) — The maximum sequence length that this model might ever be used with. Typically set this to something large just in case (e.g., 512 or 1024 or 2048).
• hidden_act (str or function, optional, defaults to "gelu_pytorch_tanh") — The non-linear activation function (function or string) in the encoder and pooler. If string, "gelu","relu", "selu" and "gelu_new" "quick_gelu" are supported.
• layer_norm_eps (float, optional, defaults to 1e-06) — The epsilon used by the layer normalization layers.
• attention_dropout (float, optional, defaults to 0.0) — The dropout ratio for the attention probabilities.
• pad_token_id (int, optional, defaults to 1) — The id of the padding token in the vocabulary.
• bos_token_id (int, optional, defaults to 49406) — The id of the beginning-of-sequence token in the vocabulary.
• eos_token_id (int, optional, defaults to 49407) — The id of the end-of-sequence token in the vocabulary.
• projection_size (int, optional, defaults to hidden_size) — The size of the projection head.

This is the configuration class to store the configuration of a SiglipTextModel. It is used to instantiate a Siglip text encoder according to the specified arguments, defining the model architecture. Instantiating a configuration with the defaults will yield a similar configuration to that of the text encoder of the Siglipgoogle/siglip-base-patch16-224 architecture.

Configuration objects inherit from PretrainedConfig and can be used to control the model outputs. Read the documentation from PretrainedConfig for more information.

Example:

from transformers import SiglipTextConfig, SiglipTextModel

configuration = SiglipTextConfig()

model = SiglipTextModel(configuration)

configuration = model.config

SiglipVisionConfig

class transformers.SiglipVisionConfig

< source >

( hidden_size = 768 intermediate_size = 3072 num_hidden_layers = 12 num_attention_heads = 12 num_channels = 3 image_size = 224 patch_size = 16 hidden_act = 'gelu_pytorch_tanh' layer_norm_eps = 1e-06 attention_dropout = 0.0 **kwargs )

Parameters

• hidden_size (int, optional, defaults to 768) — Dimensionality of the encoder layers and the pooler layer.
• intermediate_size (int, optional, defaults to 3072) — Dimensionality of the “intermediate” (i.e., feed-forward) layer in the Transformer encoder.
• num_hidden_layers (int, optional, defaults to 12) — Number of hidden layers in the Transformer encoder.
• num_attention_heads (int, optional, defaults to 12) — Number of attention heads for each attention layer in the Transformer encoder.
• num_channels (int, optional, defaults to 3) — Number of channels in the input images.
• image_size (int, optional, defaults to 224) — The size (resolution) of each image.
• patch_size (int, optional, defaults to 16) — The size (resolution) of each patch.
• hidden_act (str or function, optional, defaults to "gelu_pytorch_tanh") — The non-linear activation function (function or string) in the encoder and pooler. If string, "gelu","relu", "selu" and "gelu_new" "quick_gelu" are supported.
• layer_norm_eps (float, optional, defaults to 1e-06) — The epsilon used by the layer normalization layers.
• attention_dropout (float, optional, defaults to 0.0) — The dropout ratio for the attention probabilities.

This is the configuration class to store the configuration of a SiglipVisionModel. It is used to instantiate a Siglip vision encoder according to the specified arguments, defining the model architecture. Instantiating a configuration with the defaults will yield a similar configuration to that of the vision encoder of the Siglipgoogle/siglip-base-patch16-224 architecture.

Configuration objects inherit from PretrainedConfig and can be used to control the model outputs. Read the documentation from PretrainedConfig for more information.

Example:

from transformers import SiglipVisionConfig, SiglipVisionModel

configuration = SiglipVisionConfig()

model = SiglipVisionModel(configuration)

configuration = model.config

SiglipTokenizer

class transformers.SiglipTokenizer

< source >

( vocab_file eos_token = '' unk_token = '' pad_token = '' additional_special_tokens = None sp_model_kwargs: typing.Optional[typing.Dict[str, typing.Any]] = None model_max_length = 64 do_lower_case = True **kwargs )

Parameters

• vocab_file (str) —SentencePiece file (generally has a .spm extension) that contains the vocabulary necessary to instantiate a tokenizer.
• eos_token (str, optional, defaults to "</s>") — The end of sequence token.
• unk_token (str, optional, defaults to "<unk>") — The unknown token. A token that is not in the vocabulary cannot be converted to an ID and is set to be this token instead.
• pad_token (str, optional, defaults to "</s>") — The token used for padding, for example when batching sequences of different lengths.
• additional_special_tokens (List[str], optional) — Additional special tokens used by the tokenizer.
• sp_model_kwargs (dict, optional) — Will be passed to the SentencePieceProcessor.__init__() method. The Python wrapper for SentencePiece can be used, among other things, to set:
  • enable_sampling: Enable subword regularization.
  • nbest_size: Sampling parameters for unigram. Invalid for BPE-Dropout.
    * nbest_size = {0,1}: No sampling is performed.
    * nbest_size > 1: samples from the nbest_size results.
    * nbest_size < 0: assuming that nbest_size is infinite and samples from the all hypothesis (lattice) using forward-filtering-and-backward-sampling algorithm.
  • alpha: Smoothing parameter for unigram sampling, and dropout probability of merge operations for BPE-dropout.
• model_max_length (int, optional, defaults to 64) — The maximum length (in number of tokens) for model inputs.
• do_lower_case (bool, optional, defaults to True) — Whether or not to lowercase the input when tokenizing.

Construct a Siglip tokenizer. Based on SentencePiece.

This tokenizer inherits from PreTrainedTokenizer which contains most of the main methods. Users should refer to this superclass for more information regarding those methods.

build_inputs_with_special_tokens

< source >

( token_ids_0: typing.List[int] token_ids_1: typing.Optional[typing.List[int]] = None ) → List[int]

Parameters

• token_ids_0 (List[int]) — List of IDs to which the special tokens will be added.
• token_ids_1 (List[int], optional) — Optional second list of IDs for sequence pairs.

List of input IDs with the appropriate special tokens.

Build model inputs from a sequence or a pair of sequence for sequence classification tasks by concatenating and adding special tokens. A sequence has the following format:

• single sequence: X </s>
• pair of sequences: A </s> B </s>

get_special_tokens_mask

< source >

( token_ids_0: typing.List[int] token_ids_1: typing.Optional[typing.List[int]] = None already_has_special_tokens: bool = False ) → List[int]

Parameters

• token_ids_0 (List[int]) — List of IDs.
• token_ids_1 (List[int], optional) — Optional second list of IDs for sequence pairs.
• already_has_special_tokens (bool, optional, defaults to False) — Whether or not the token list is already formatted with special tokens for the model.

A list of integers in the range [0, 1]: 1 for a special token, 0 for a sequence token.

Retrieve sequence ids from a token list that has no special tokens added. This method is called when adding special tokens using the tokenizer prepare_for_model method.

create_token_type_ids_from_sequences

< source >

( token_ids_0: typing.List[int] token_ids_1: typing.Optional[typing.List[int]] = None ) → List[int]

Parameters

• token_ids_0 (List[int]) — List of IDs.
• token_ids_1 (List[int], optional) — Optional second list of IDs for sequence pairs.

List of zeros.

Create a mask from the two sequences passed to be used in a sequence-pair classification task. T5 does not make use of token type ids, therefore a list of zeros is returned.

save_vocabulary

< source >

( save_directory: str filename_prefix: typing.Optional[str] = None )

SiglipImageProcessor

class transformers.SiglipImageProcessor

< source >

( do_resize: bool = True size: typing.Optional[typing.Dict[str, int]] = None resample: Resampling = <Resampling.BICUBIC: 3> do_rescale: bool = True rescale_factor: typing.Union[int, float] = 0.00392156862745098 do_normalize: bool = True image_mean: typing.Union[float, typing.List[float], NoneType] = None image_std: typing.Union[float, typing.List[float], NoneType] = None do_convert_rgb: typing.Optional[bool] = None **kwargs )

Parameters

• do_resize (bool, optional, defaults to True) — Whether to resize the image’s (height, width) dimensions to the specified size. Can be overridden bydo_resize in the preprocess method.
• size (Dict[str, int] optional, defaults to {"height" -- 224, "width": 224}): Size of the image after resizing. Can be overridden by size in the preprocess method.
• resample (PILImageResampling, optional, defaults to Resampling.BICUBIC) — Resampling filter to use if resizing the image. Can be overridden by resample in the preprocess method.
• do_rescale (bool, optional, defaults to True) — Whether to rescale the image by the specified scale rescale_factor. Can be overridden by do_rescale in the preprocess method.
• rescale_factor (int or float, optional, defaults to 1/255) — Scale factor to use if rescaling the image. Can be overridden by rescale_factor in the preprocessmethod.
• do_normalize (bool, optional, defaults to True) — Whether to normalize the image by the specified mean and standard deviation. Can be overridden bydo_normalize in the preprocess method.
• image_mean (float or List[float], optional, defaults to [0.5, 0.5, 0.5]) — Mean to use if normalizing the image. This is a float or list of floats the length of the number of channels in the image. Can be overridden by the image_mean parameter in the preprocess method.
• image_std (float or List[float], optional, defaults to [0.5, 0.5, 0.5]) — Standard deviation to use if normalizing the image. This is a float or list of floats the length of the number of channels in the image. Can be overridden by the image_std parameter in the preprocess method. Can be overridden by the image_std parameter in the preprocess method.
• do_convert_rgb (bool, optional, defaults to True) — Whether to convert the image to RGB.

Constructs a SigLIP image processor.

preprocess

< source >

( images: typing.Union[ForwardRef('PIL.Image.Image'), numpy.ndarray, ForwardRef('torch.Tensor'), list['PIL.Image.Image'], list[numpy.ndarray], list['torch.Tensor']] do_resize: typing.Optional[bool] = None size: typing.Optional[typing.Dict[str, int]] = None resample: Resampling = None do_rescale: typing.Optional[bool] = None rescale_factor: typing.Optional[float] = None do_normalize: typing.Optional[bool] = None image_mean: typing.Union[float, typing.List[float], NoneType] = None image_std: typing.Union[float, typing.List[float], NoneType] = None return_tensors: typing.Union[str, transformers.utils.generic.TensorType, NoneType] = None data_format: typing.Optional[transformers.image_utils.ChannelDimension] = <ChannelDimension.FIRST: 'channels_first'> input_data_format: typing.Union[str, transformers.image_utils.ChannelDimension, NoneType] = None do_convert_rgb: typing.Optional[bool] = None )

Parameters

• images (ImageInput) — Image to preprocess. Expects a single or batch of images with pixel values ranging from 0 to 255. If passing in images with pixel values between 0 and 1, set do_rescale=False.
• do_resize (bool, optional, defaults to self.do_resize) — Whether to resize the image.
• size (Dict[str, int], optional, defaults to self.size) — Size of the image after resizing.
• resample (int, optional, defaults to self.resample) — Resampling filter to use if resizing the image. This can be one of the enum PILImageResampling. Only has an effect if do_resize is set to True.
• do_rescale (bool, optional, defaults to self.do_rescale) — Whether to rescale the image.
• rescale_factor (float, optional, defaults to self.rescale_factor) — Rescale factor to rescale the image by if do_rescale is set to True.
• do_normalize (bool, optional, defaults to self.do_normalize) — Whether to normalize the image.
• image_mean (float or List[float], optional, defaults to self.image_mean) — Image mean to use for normalization. Only has an effect if do_normalize is set to True.
• image_std (float or List[float], optional, defaults to self.image_std) — Image standard deviation to use for normalization. Only has an effect if do_normalize is set toTrue.
• return_tensors (str or TensorType, optional) — The type of tensors to return. Can be one of:
  • Unset: Return a list of np.ndarray.
  • TensorType.TENSORFLOW or 'tf': Return a batch of type tf.Tensor.
  • TensorType.PYTORCH or 'pt': Return a batch of type torch.Tensor.
  • TensorType.NUMPY or 'np': Return a batch of type np.ndarray.
  • TensorType.JAX or 'jax': Return a batch of type jax.numpy.ndarray.
• data_format (ChannelDimension or str, optional, defaults to ChannelDimension.FIRST) — The channel dimension format for the output image. Can be one of:
  • "channels_first" or ChannelDimension.FIRST: image in (num_channels, height, width) format.
  • "channels_last" or ChannelDimension.LAST: image in (height, width, num_channels) format.
  • Unset: Use the channel dimension format of the input image.
• input_data_format (ChannelDimension or str, optional) — The channel dimension format for the input image. If unset, the channel dimension format is inferred from the input image. Can be one of:
  • "channels_first" or ChannelDimension.FIRST: image in (num_channels, height, width) format.
  • "channels_last" or ChannelDimension.LAST: image in (height, width, num_channels) format.
  • "none" or ChannelDimension.NONE: image in (height, width) format.
• do_convert_rgb (bool, optional, defaults to self.do_convert_rgb) — Whether to convert the image to RGB.

Preprocess an image or batch of images.

SiglipImageProcessorFast

class transformers.SiglipImageProcessorFast

< source >

( **kwargs: typing_extensions.Unpack[transformers.image_processing_utils_fast.DefaultFastImageProcessorKwargs] )

Parameters

• do_resize (bool, optional, defaults to self.do_resize) — Whether to resize the image’s (height, width) dimensions to the specified size. Can be overridden by thedo_resize parameter in the preprocess method.
• size (dict, optional, defaults to self.size) — Size of the output image after resizing. Can be overridden by the size parameter in the preprocessmethod.
• default_to_square (bool, optional, defaults to self.default_to_square) — Whether to default to a square image when resizing, if size is an int.
• resample (PILImageResampling, optional, defaults to self.resample) — Resampling filter to use if resizing the image. Only has an effect if do_resize is set to True. Can be overridden by the resample parameter in the preprocess method.
• do_center_crop (bool, optional, defaults to self.do_center_crop) — Whether to center crop the image to the specified crop_size. Can be overridden by do_center_crop in thepreprocess method.
• crop_size (Dict[str, int] optional, defaults to self.crop_size) — Size of the output image after applying center_crop. Can be overridden by crop_size in the preprocessmethod.
• do_rescale (bool, optional, defaults to self.do_rescale) — Whether to rescale the image by the specified scale rescale_factor. Can be overridden by thedo_rescale parameter in the preprocess method.
• rescale_factor (int or float, optional, defaults to self.rescale_factor) — Scale factor to use if rescaling the image. Only has an effect if do_rescale is set to True. Can be overridden by the rescale_factor parameter in the preprocess method.
• do_normalize (bool, optional, defaults to self.do_normalize) — Whether to normalize the image. Can be overridden by the do_normalize parameter in the preprocessmethod. Can be overridden by the do_normalize parameter in the preprocess method.
• image_mean (float or List[float], optional, defaults to self.image_mean) — Mean to use if normalizing the image. This is a float or list of floats the length of the number of channels in the image. Can be overridden by the image_mean parameter in the preprocess method. Can be overridden by the image_mean parameter in the preprocess method.
• image_std (float or List[float], optional, defaults to self.image_std) — Standard deviation to use if normalizing the image. This is a float or list of floats the length of the number of channels in the image. Can be overridden by the image_std parameter in the preprocess method. Can be overridden by the image_std parameter in the preprocess method.
• do_convert_rgb (bool, optional, defaults to self.do_convert_rgb) — Whether to convert the image to RGB.
• return_tensors (str or TensorType, optional, defaults to self.return_tensors) — Returns stacked tensors if set to `pt, otherwise returns a list of tensors.
• data_format (ChannelDimension or str, optional, defaults to self.data_format) — Only ChannelDimension.FIRST is supported. Added for compatibility with slow processors.
• input_data_format (ChannelDimension or str, optional, defaults to self.input_data_format) — The channel dimension format for the input image. If unset, the channel dimension format is inferred from the input image. Can be one of:
  • "channels_first" or ChannelDimension.FIRST: image in (num_channels, height, width) format.
  • "channels_last" or ChannelDimension.LAST: image in (height, width, num_channels) format.
  • "none" or ChannelDimension.NONE: image in (height, width) format.
• device (torch.device, optional, defaults to self.device) — The device to process the images on. If unset, the device is inferred from the input images.

Constructs a fast SigLIP image processor.

preprocess

< source >

( images: typing.Union[ForwardRef('PIL.Image.Image'), numpy.ndarray, ForwardRef('torch.Tensor'), list['PIL.Image.Image'], list[numpy.ndarray], list['torch.Tensor']] **kwargs: typing_extensions.Unpack[transformers.image_processing_utils_fast.DefaultFastImageProcessorKwargs] )

Parameters

• images (ImageInput) — Image to preprocess. Expects a single or batch of images with pixel values ranging from 0 to 255. If passing in images with pixel values between 0 and 1, set do_rescale=False.
• do_resize (bool, optional, defaults to self.do_resize) — Whether to resize the image.
• size (Dict[str, int], optional, defaults to self.size) — Describes the maximum input dimensions to the model.
• resample (PILImageResampling or InterpolationMode, optional, defaults to self.resample) — Resampling filter to use if resizing the image. This can be one of the enum PILImageResampling. Only has an effect if do_resize is set to True.
• do_center_crop (bool, optional, defaults to self.do_center_crop) — Whether to center crop the image.
• crop_size (Dict[str, int], optional, defaults to self.crop_size) — Size of the output image after applying center_crop.
• do_rescale (bool, optional, defaults to self.do_rescale) — Whether to rescale the image.
• rescale_factor (float, optional, defaults to self.rescale_factor) — Rescale factor to rescale the image by if do_rescale is set to True.
• do_normalize (bool, optional, defaults to self.do_normalize) — Whether to normalize the image.
• image_mean (float or List[float], optional, defaults to self.image_mean) — Image mean to use for normalization. Only has an effect if do_normalize is set to True.
• image_std (float or List[float], optional, defaults to self.image_std) — Image standard deviation to use for normalization. Only has an effect if do_normalize is set toTrue.
• do_convert_rgb (bool, optional, defaults to self.do_convert_rgb) — Whether to convert the image to RGB.
• return_tensors (str or TensorType, optional, defaults to self.return_tensors) — Returns stacked tensors if set to `pt, otherwise returns a list of tensors.
• data_format (ChannelDimension or str, optional, defaults to self.data_format) — Only ChannelDimension.FIRST is supported. Added for compatibility with slow processors.
• input_data_format (ChannelDimension or str, optional, defaults to self.input_data_format) — The channel dimension format for the input image. If unset, the channel dimension format is inferred from the input image. Can be one of:
  • "channels_first" or ChannelDimension.FIRST: image in (num_channels, height, width) format.
  • "channels_last" or ChannelDimension.LAST: image in (height, width, num_channels) format.
  • "none" or ChannelDimension.NONE: image in (height, width) format.
• device (torch.device, optional, defaults to self.device) — The device to process the images on. If unset, the device is inferred from the input images.

Preprocess an image or batch of images.

SiglipProcessor

class transformers.SiglipProcessor

< source >

( image_processor tokenizer )

Parameters

• image_processor (SiglipImageProcessor) — The image processor is a required input.
• tokenizer (SiglipTokenizer) — The tokenizer is a required input.

Constructs a Siglip processor which wraps a Siglip image processor and a Siglip tokenizer into a single processor.

SiglipProcessor offers all the functionalities of SiglipImageProcessor and SiglipTokenizer. See the__call__() and decode() for more information.

This method forwards all its arguments to SiglipTokenizer’s batch_decode(). Please refer to the docstring of this method for more information.

This method forwards all its arguments to SiglipTokenizer’s decode(). Please refer to the docstring of this method for more information.

SiglipModel

class transformers.SiglipModel

< source >

( config: SiglipConfig )

Parameters

• config (SiglipConfig) — Model configuration class with all the parameters of the model. Initializing with a config file does not load the weights associated with the model, only the configuration. Check out the from_pretrained() method to load the model weights.

This model inherits from PreTrainedModel. Check the superclass documentation for the generic methods the library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads etc.)

This model is also a PyTorch torch.nn.Module subclass. Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and behavior.

forward

< source >

( input_ids: typing.Optional[torch.LongTensor] = None pixel_values: typing.Optional[torch.FloatTensor] = None attention_mask: typing.Optional[torch.Tensor] = None position_ids: typing.Optional[torch.LongTensor] = None return_loss: typing.Optional[bool] = None output_attentions: typing.Optional[bool] = None output_hidden_states: typing.Optional[bool] = None interpolate_pos_encoding: bool = False ) → transformers.models.siglip.modeling_siglip.SiglipOutput or tuple(torch.FloatTensor)

Parameters

• input_ids (torch.LongTensor of shape (batch_size, sequence_length)) — Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you provide it.
  Indices can be obtained using AutoTokenizer. See PreTrainedTokenizer.encode() andPreTrainedTokenizer.call() for details.
  What are input IDs?
• attention_mask (torch.Tensor of shape (batch_size, sequence_length), optional) — Mask to avoid performing attention on padding token indices. Mask values selected in [0, 1]:
  • 1 for tokens that are not masked,
  • 0 for tokens that are masked.
    What are attention masks?
• position_ids (torch.LongTensor of shape (batch_size, sequence_length), optional) — Indices of positions of each input sequence tokens in the position embeddings. Selected in the range [0, config.max_position_embeddings - 1].
  What are position IDs?
• pixel_values (torch.FloatTensor of shape (batch_size, num_channels, height, width)) — Pixel values. Padding will be ignored by default should you provide it. Pixel values can be obtained usingAutoImageProcessor. See CLIPImageProcessor.call() for details.
• return_loss (bool, optional) — Whether or not to return the contrastive loss.
• output_attentions (bool, optional) — Whether or not to return the attentions tensors of all attention layers. See attentions under returned tensors for more detail.
• output_hidden_states (bool, optional) — Whether or not to return the hidden states of all layers. See hidden_states under returned tensors for more detail.
• interpolate_pos_encoding (bool, optional, defaults to False) — Whether to interpolate the pre-trained position encodings.
• return_dict (bool, optional) — Whether or not to return a ModelOutput instead of a plain tuple.

Returns

transformers.models.siglip.modeling_siglip.SiglipOutput or tuple(torch.FloatTensor)

A transformers.models.siglip.modeling_siglip.SiglipOutput or a tuple oftorch.FloatTensor (if return_dict=False is passed or when config.return_dict=False) comprising various elements depending on the configuration (<class 'transformers.models.siglip.configuration_siglip.SiglipConfig'>) and inputs.

• loss (torch.FloatTensor of shape (1,), optional, returned when return_loss is True) — Contrastive loss for image-text similarity.
• logits_per_image (torch.FloatTensor of shape (image_batch_size, text_batch_size)) — The scaled dot product scores between image_embeds and text_embeds. This represents the image-text similarity scores.
• logits_per_text (torch.FloatTensor of shape (text_batch_size, image_batch_size)) — The scaled dot product scores between text_embeds and image_embeds. This represents the text-image similarity scores.
• text_embeds (torch.FloatTensor of shape (batch_size, output_dim) — The text embeddings obtained by applying the projection layer to the pooled output of SiglipTextModel.
• image_embeds (torch.FloatTensor of shape (batch_size, output_dim) — The image embeddings obtained by applying the projection layer to the pooled output of SiglipVisionModel.
• text_model_output (BaseModelOutputWithPooling) — The output of the SiglipTextModel.
• vision_model_output (BaseModelOutputWithPooling) — The output of the SiglipVisionModel.

The SiglipModel forward method, overrides the __call__ special method.

Although the recipe for forward pass needs to be defined within this function, one should call the Moduleinstance afterwards instead of this since the former takes care of running the pre and post processing steps while the latter silently ignores them.

Examples:

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

model = AutoModel.from_pretrained("google/siglip-base-patch16-224") processor = AutoProcessor.from_pretrained("google/siglip-base-patch16-224")

url = "http://images.cocodataset.org/val2017/000000039769.jpg" image = Image.open(requests.get(url, stream=True).raw)

texts = ["a photo of 2 cats", "a photo of 2 dogs"]

inputs = processor(text=texts, images=image, padding="max_length", return_tensors="pt")

with torch.no_grad(): ... outputs = model(**inputs)

logits_per_image = outputs.logits_per_image probs = torch.sigmoid(logits_per_image) print(f"{probs[0][0]:.1%} that image 0 is '{texts[0]}'") 31.9% that image 0 is 'a photo of 2 cats'

get_text_features

< source >

( input_ids: typing.Optional[torch.Tensor] = None attention_mask: typing.Optional[torch.Tensor] = None position_ids: typing.Optional[torch.Tensor] = None output_attentions: typing.Optional[bool] = None output_hidden_states: typing.Optional[bool] = None ) → text_features (torch.FloatTensor of shape (batch_size, output_dim)

Parameters

• input_ids (torch.LongTensor of shape (batch_size, sequence_length)) — Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you provide it.
  Indices can be obtained using AutoTokenizer. See PreTrainedTokenizer.encode() andPreTrainedTokenizer.call() for details.
  What are input IDs?
• attention_mask (torch.Tensor of shape (batch_size, sequence_length), optional) — Mask to avoid performing attention on padding token indices. Mask values selected in [0, 1]:
  • 1 for tokens that are not masked,
  • 0 for tokens that are masked.
    What are attention masks?
• position_ids (torch.LongTensor of shape (batch_size, sequence_length), optional) — Indices of positions of each input sequence tokens in the position embeddings. Selected in the range [0, config.max_position_embeddings - 1].
  What are position IDs?
• output_attentions (bool, optional) — Whether or not to return the attentions tensors of all attention layers. See attentions under returned tensors for more detail.
• output_hidden_states (bool, optional) — Whether or not to return the hidden states of all layers. See hidden_states under returned tensors for more detail.
• return_dict (bool, optional) — Whether or not to return a ModelOutput instead of a plain tuple.

Returns

text_features (torch.FloatTensor of shape (batch_size, output_dim)

The text embeddings obtained by applying the projection layer to the pooled output of SiglipTextModel.

The SiglipModel forward method, overrides the __call__ special method.

Although the recipe for forward pass needs to be defined within this function, one should call the Moduleinstance afterwards instead of this since the former takes care of running the pre and post processing steps while the latter silently ignores them.

Examples:

from transformers import AutoTokenizer, AutoModel import torch

model = AutoModel.from_pretrained("google/siglip-base-patch16-224") tokenizer = AutoTokenizer.from_pretrained("google/siglip-base-patch16-224")

inputs = tokenizer(["a photo of a cat", "a photo of a dog"], padding="max_length", return_tensors="pt") with torch.no_grad(): ... text_features = model.get_text_features(**inputs)

get_image_features

< source >

( pixel_values: typing.Optional[torch.FloatTensor] = None output_attentions: typing.Optional[bool] = None output_hidden_states: typing.Optional[bool] = None interpolate_pos_encoding: bool = False ) → image_features (torch.FloatTensor of shape (batch_size, output_dim)

Parameters

• pixel_values (torch.FloatTensor of shape (batch_size, num_channels, height, width)) — Pixel values. Padding will be ignored by default should you provide it. Pixel values can be obtained usingAutoImageProcessor. See CLIPImageProcessor.call() for details.
• output_attentions (bool, optional) — Whether or not to return the attentions tensors of all attention layers. See attentions under returned tensors for more detail.
• output_hidden_states (bool, optional) — Whether or not to return the hidden states of all layers. See hidden_states under returned tensors for more detail.
• interpolate_pos_encoding (bool, optional, defaults to False) — Whether to interpolate the pre-trained position encodings.
• return_dict (bool, optional) — Whether or not to return a ModelOutput instead of a plain tuple.

Returns

image_features (torch.FloatTensor of shape (batch_size, output_dim)

The image embeddings obtained by applying the projection layer to the pooled output of SiglipVisionModel.

The SiglipModel forward method, overrides the __call__ special method.

Although the recipe for forward pass needs to be defined within this function, one should call the Moduleinstance afterwards instead of this since the former takes care of running the pre and post processing steps while the latter silently ignores them.

Examples:

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

model = AutoModel.from_pretrained("google/siglip-base-patch16-224") processor = AutoProcessor.from_pretrained("google/siglip-base-patch16-224")

url = "http://images.cocodataset.org/val2017/000000039769.jpg" image = Image.open(requests.get(url, stream=True).raw)

inputs = processor(images=image, return_tensors="pt")

with torch.no_grad(): ... image_features = model.get_image_features(**inputs)

SiglipTextModel

class transformers.SiglipTextModel

< source >

( config: SiglipTextConfig )

Parameters

• config (SiglipConfig) — Model configuration class with all the parameters of the model. Initializing with a config file does not load the weights associated with the model, only the configuration. Check out the from_pretrained() method to load the model weights.

The text model from SigLIP without any head or projection on top. This model inherits from PreTrainedModel. Check the superclass documentation for the generic methods the library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads etc.)

This model is also a PyTorch torch.nn.Module subclass. Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and behavior.

forward

< source >

( input_ids: typing.Optional[torch.Tensor] = None attention_mask: typing.Optional[torch.Tensor] = None position_ids: typing.Optional[torch.Tensor] = None output_attentions: typing.Optional[bool] = None output_hidden_states: typing.Optional[bool] = None ) → transformers.modeling_outputs.BaseModelOutputWithPooling or tuple(torch.FloatTensor)

Parameters

• input_ids (torch.LongTensor of shape (batch_size, sequence_length)) — Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you provide it.
  Indices can be obtained using AutoTokenizer. See PreTrainedTokenizer.encode() andPreTrainedTokenizer.call() for details.
  What are input IDs?
• attention_mask (torch.Tensor of shape (batch_size, sequence_length), optional) — Mask to avoid performing attention on padding token indices. Mask values selected in [0, 1]:
  • 1 for tokens that are not masked,
  • 0 for tokens that are masked.
    What are attention masks?
• position_ids (torch.LongTensor of shape (batch_size, sequence_length), optional) — Indices of positions of each input sequence tokens in the position embeddings. Selected in the range [0, config.max_position_embeddings - 1].
  What are position IDs?
• output_attentions (bool, optional) — Whether or not to return the attentions tensors of all attention layers. See attentions under returned tensors for more detail.
• output_hidden_states (bool, optional) — Whether or not to return the hidden states of all layers. See hidden_states under returned tensors for more detail.
• return_dict (bool, optional) — Whether or not to return a ModelOutput instead of a plain tuple.

A transformers.modeling_outputs.BaseModelOutputWithPooling or a tuple oftorch.FloatTensor (if return_dict=False is passed or when config.return_dict=False) comprising various elements depending on the configuration (<class 'transformers.models.siglip.configuration_siglip.SiglipTextConfig'>) and inputs.

• last_hidden_state (torch.FloatTensor of shape (batch_size, sequence_length, hidden_size)) — Sequence of hidden-states at the output of the last layer of the model.
• pooler_output (torch.FloatTensor of shape (batch_size, hidden_size)) — Last layer hidden-state of the first token of the sequence (classification token) after further processing through the layers used for the auxiliary pretraining task. E.g. for BERT-family of models, this returns the classification token after processing through a linear layer and a tanh activation function. The linear layer weights are trained from the next sentence prediction (classification) objective during pretraining.
• hidden_states (tuple(torch.FloatTensor), optional, returned when output_hidden_states=True is passed or when config.output_hidden_states=True) — Tuple of torch.FloatTensor (one for the output of the embeddings, if the model has an embedding layer, + one for the output of each layer) of shape (batch_size, sequence_length, hidden_size).
  Hidden-states of the model at the output of each layer plus the optional initial embedding outputs.
• attentions (tuple(torch.FloatTensor), optional, returned when output_attentions=True is passed or when config.output_attentions=True) — Tuple of torch.FloatTensor (one for each layer) of shape (batch_size, num_heads, sequence_length, sequence_length).
  Attentions weights after the attention softmax, used to compute the weighted average in the self-attention heads.

The SiglipTextModel forward method, overrides the __call__ special method.

Although the recipe for forward pass needs to be defined within this function, one should call the Moduleinstance afterwards instead of this since the former takes care of running the pre and post processing steps while the latter silently ignores them.

Examples:

from transformers import AutoTokenizer, SiglipTextModel

model = SiglipTextModel.from_pretrained("google/siglip-base-patch16-224") tokenizer = AutoTokenizer.from_pretrained("google/siglip-base-patch16-224")

inputs = tokenizer(["a photo of a cat", "a photo of a dog"], padding="max_length", return_tensors="pt")

outputs = model(**inputs) last_hidden_state = outputs.last_hidden_state pooled_output = outputs.pooler_output

SiglipVisionModel

class transformers.SiglipVisionModel

< source >

( config: SiglipVisionConfig )

Parameters

• config (SiglipConfig) — Model configuration class with all the parameters of the model. Initializing with a config file does not load the weights associated with the model, only the configuration. Check out the from_pretrained() method to load the model weights.

The vision model from SigLIP without any head or projection on top. This model inherits from PreTrainedModel. Check the superclass documentation for the generic methods the library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads etc.)

This model is also a PyTorch torch.nn.Module subclass. Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and behavior.

forward

< source >

( pixel_values output_attentions: typing.Optional[bool] = None output_hidden_states: typing.Optional[bool] = None interpolate_pos_encoding: bool = False ) → transformers.modeling_outputs.BaseModelOutputWithPooling or tuple(torch.FloatTensor)

Parameters

• pixel_values (torch.FloatTensor of shape (batch_size, num_channels, height, width)) — Pixel values. Padding will be ignored by default should you provide it. Pixel values can be obtained usingAutoImageProcessor. See CLIPImageProcessor.call() for details.
• output_attentions (bool, optional) — Whether or not to return the attentions tensors of all attention layers. See attentions under returned tensors for more detail.
• output_hidden_states (bool, optional) — Whether or not to return the hidden states of all layers. See hidden_states under returned tensors for more detail.
• interpolate_pos_encoding (bool, optional, defaults to False) — Whether to interpolate the pre-trained position encodings.
• return_dict (bool, optional) — Whether or not to return a ModelOutput instead of a plain tuple.

A transformers.modeling_outputs.BaseModelOutputWithPooling or a tuple oftorch.FloatTensor (if return_dict=False is passed or when config.return_dict=False) comprising various elements depending on the configuration (<class 'transformers.models.siglip.configuration_siglip.SiglipVisionConfig'>) and inputs.

• last_hidden_state (torch.FloatTensor of shape (batch_size, sequence_length, hidden_size)) — Sequence of hidden-states at the output of the last layer of the model.
• pooler_output (torch.FloatTensor of shape (batch_size, hidden_size)) — Last layer hidden-state of the first token of the sequence (classification token) after further processing through the layers used for the auxiliary pretraining task. E.g. for BERT-family of models, this returns the classification token after processing through a linear layer and a tanh activation function. The linear layer weights are trained from the next sentence prediction (classification) objective during pretraining.
• hidden_states (tuple(torch.FloatTensor), optional, returned when output_hidden_states=True is passed or when config.output_hidden_states=True) — Tuple of torch.FloatTensor (one for the output of the embeddings, if the model has an embedding layer, + one for the output of each layer) of shape (batch_size, sequence_length, hidden_size).
  Hidden-states of the model at the output of each layer plus the optional initial embedding outputs.
• attentions (tuple(torch.FloatTensor), optional, returned when output_attentions=True is passed or when config.output_attentions=True) — Tuple of torch.FloatTensor (one for each layer) of shape (batch_size, num_heads, sequence_length, sequence_length).
  Attentions weights after the attention softmax, used to compute the weighted average in the self-attention heads.

The SiglipVisionModel forward method, overrides the __call__ special method.

Although the recipe for forward pass needs to be defined within this function, one should call the Moduleinstance afterwards instead of this since the former takes care of running the pre and post processing steps while the latter silently ignores them.

Examples:

from PIL import Image import requests from transformers import AutoProcessor, SiglipVisionModel

model = SiglipVisionModel.from_pretrained("google/siglip-base-patch16-224") processor = AutoProcessor.from_pretrained("google/siglip-base-patch16-224")

url = "http://images.cocodataset.org/val2017/000000039769.jpg" image = Image.open(requests.get(url, stream=True).raw)

inputs = processor(images=image, return_tensors="pt")

outputs = model(**inputs) last_hidden_state = outputs.last_hidden_state pooled_output = outputs.pooler_output

SiglipForImageClassification

class transformers.SiglipForImageClassification

< source >

( config: SiglipConfig )

Parameters

• config (SiglipConfig) — Model configuration class with all the parameters of the model. Initializing with a config file does not load the weights associated with the model, only the configuration. Check out the from_pretrained() method to load the model weights.

SigLIP vision encoder with an image classification head on top (a linear layer on top of the pooled final hidden states of the patch tokens) e.g. for ImageNet.

This model inherits from PreTrainedModel. Check the superclass documentation for the generic methods the library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads etc.)

This model is also a PyTorch torch.nn.Module subclass. Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and behavior.

forward

< source >

( pixel_values: typing.Optional[torch.Tensor] = None labels: typing.Optional[torch.Tensor] = None output_attentions: typing.Optional[bool] = None output_hidden_states: typing.Optional[bool] = None interpolate_pos_encoding: bool = False ) → transformers.modeling_outputs.ImageClassifierOutput or tuple(torch.FloatTensor)

Parameters

• input_ids (torch.LongTensor of shape (batch_size, sequence_length)) — Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you provide it.
  Indices can be obtained using AutoTokenizer. See PreTrainedTokenizer.encode() andPreTrainedTokenizer.call() for details.
  What are input IDs?
• attention_mask (torch.Tensor of shape (batch_size, sequence_length), optional) — Mask to avoid performing attention on padding token indices. Mask values selected in [0, 1]:
  • 1 for tokens that are not masked,
  • 0 for tokens that are masked.
    What are attention masks?
• position_ids (torch.LongTensor of shape (batch_size, sequence_length), optional) — Indices of positions of each input sequence tokens in the position embeddings. Selected in the range [0, config.max_position_embeddings - 1].
  What are position IDs?
• pixel_values (torch.FloatTensor of shape (batch_size, num_channels, height, width)) — Pixel values. Padding will be ignored by default should you provide it. Pixel values can be obtained usingAutoImageProcessor. See CLIPImageProcessor.call() for details.
• return_loss (bool, optional) — Whether or not to return the contrastive loss.
• output_attentions (bool, optional) — Whether or not to return the attentions tensors of all attention layers. See attentions under returned tensors for more detail.
• output_hidden_states (bool, optional) — Whether or not to return the hidden states of all layers. See hidden_states under returned tensors for more detail.
• interpolate_pos_encoding (bool, optional, defaults to False) — Whether to interpolate the pre-trained position encodings.
• return_dict (bool, optional) — Whether or not to return a ModelOutput instead of a plain tuple.
• labels (torch.LongTensor of shape (batch_size,), optional) — Labels for computing the image classification/regression loss. Indices should be in [0, ..., config.num_labels - 1]. If config.num_labels == 1 a regression loss is computed (Mean-Square loss), Ifconfig.num_labels > 1 a classification loss is computed (Cross-Entropy).

A transformers.modeling_outputs.ImageClassifierOutput or a tuple oftorch.FloatTensor (if return_dict=False is passed or when config.return_dict=False) comprising various elements depending on the configuration (SiglipConfig) and inputs.

• loss (torch.FloatTensor of shape (1,), optional, returned when labels is provided) — Classification (or regression if config.num_labels==1) loss.
• logits (torch.FloatTensor of shape (batch_size, config.num_labels)) — Classification (or regression if config.num_labels==1) scores (before SoftMax).
• hidden_states (tuple(torch.FloatTensor), optional, returned when output_hidden_states=True is passed or when config.output_hidden_states=True) — Tuple of torch.FloatTensor (one for the output of the embeddings, if the model has an embedding layer, + one for the output of each stage) of shape (batch_size, sequence_length, hidden_size). Hidden-states (also called feature maps) of the model at the output of each stage.
• attentions (tuple(torch.FloatTensor), optional, returned when output_attentions=True is passed or when config.output_attentions=True) — Tuple of torch.FloatTensor (one for each layer) of shape (batch_size, num_heads, patch_size, sequence_length).
  Attentions weights after the attention softmax, used to compute the weighted average in the self-attention heads.

The SiglipForImageClassification forward method, overrides the __call__ special method.

Although the recipe for forward pass needs to be defined within this function, one should call the Moduleinstance afterwards instead of this since the former takes care of running the pre and post processing steps while the latter silently ignores them.

Examples:

from transformers import AutoImageProcessor, SiglipForImageClassification import torch from PIL import Image import requests

torch.manual_seed(3) url = "http://images.cocodataset.org/val2017/000000039769.jpg" image = Image.open(requests.get(url, stream=True).raw)

image_processor = AutoImageProcessor.from_pretrained("google/siglip-base-patch16-224") model = SiglipForImageClassification.from_pretrained("google/siglip-base-patch16-224")

inputs = image_processor(images=image, return_tensors="pt") outputs = model(**inputs) logits = outputs.logits

predicted_class_idx = logits.argmax(-1).item() print("Predicted class:", model.config.id2label[predicted_class_idx]) Predicted class: LABEL_1

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