ModelRefs / Visual Encoder — AI Glossary

Visual Encoder — AI Glossary

The image-processing component of a multimodal model that converts pixels into token-like embeddings for the language model.

Overview

Visual encoders are typically Vision Transformers (ViT) pretrained with CLIP or SigLIP. Images are divided into patches, each producing an embedding. A projection (MLP or Q-Former) maps visual embeddings to the LLM's input space. Image resolution and patch granularity trade off between detail and token count.

Reference details

Topicarchitecture
Also known asimage encoder, vision tower, ViT encoder
Last reviewed2026-06-24

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Frequently asked questions

What is Visual Encoder?

The image-processing component of a multimodal model that converts pixels into token-like embeddings for the language model.

Is Visual Encoder the same as image encoder?

Yes — image encoder, vision tower, ViT encoder are common aliases for Visual Encoder.

What concepts are related to Visual Encoder?

Closely related concepts include multimodal architecture, cross attention, embedding.