Google's SigLIP text encoder produces 768-dim embeddings for cross-modal text-image similarity search. Uses sigmoid pairwise loss (no global batch normalization needed), enabling efficient contrastive learning.

Architecture

Text encoder: 12 transformer layers (768-dim, 12 heads, 3072 FFN)
Attention: bidirectional (unlike CLIP's causal)
Tokenizer: SentencePiece (32K vocab)
Pooling: last token (T-1) + linear projection head
Output: L2-normalized 768-dim embedding
Training: WebLI dataset, sigmoid pairwise loss

Files

File	Size	Description
`siglip-text-base-q4_k.gguf`	72 MB	Q4_K quantized (recommended)
`siglip-text-base-q8_0.gguf`	113 MB	Q8_0 quantized
`siglip-text-base.gguf`	421 MB	F32 full precision
`siglip-text-base-q4_k-imatrix.gguf`	72 MB	Q4_K with importance matrix
`siglip-text-base-iq4_xs.gguf`	69 MB	IQ4_XS with importance matrix

Usage

bash

crispembed --backend clip-text -m siglip-text-base-q4_k.gguf \
    --text "a photo of a cat"

License

Apache 2.0.

Credits

Original model: Google
GGUF conversion & runtime: CrispEmbed

Provenance and EU AI Act Art. 53 note

Upstream model: google/siglip-base-patch16-224 — published by google.
Upstream licence: apache-2.0. This repository redistributes under the same terms; it grants no rights the upstream licence does not.
What was done here: format conversion and/or quantisation only (GGUF). No training, no fine-tuning, no merging, no distillation, no change to architecture, vocabulary or capability. Only the numeric representation of the upstream weights differs.
Training data: documented — where it is documented at all — by the upstream provider; see the upstream model card. No training data was used, added or selected by this repository.
Provider status: under Regulation (EU) 2024/1689 the upstream authors remain the provider of this model. Converting the serialisation format does not make this repository the provider of a new general-purpose AI model, and no such claim is made. Questions about training content, copyright policy or model capability belong upstream.

cstr/siglip-text-base-GGUF

SigLIP Text Base — GGUF (CrispEmbed)