Qwen3 Embedding 4B
Neural Network
Qwen3 Embedding 4B is a Qwen family model for text embeddings, ranking, and semantic search.
Specifications
- Input
- text
- Output
- vectors (embeddings)
- Context size
- 32 768 tokens
- Vector dimensions
- 2 560
Prompt cost
(per 1M tokens)
How it works Qwen3 Embedding 4B?
Qwen3 Embedding 4B belongs to the Qwen3 Embedding series and is designed for building text vector representations and ranking tasks; the series inherits multilingual capabilities and long-text support from the Qwen family. Through BotHub, the model connects via a unified OpenAI-compatible API without VPN or foreign cards, with pay-as-you-go billing in rubles, and switching to another model does not require rewriting the integration. You write the resulting vectors to Qdrant, pgvector, or another storage and use them for semantic search over knowledge bases, RAG pipelines over corporate documentation, clustering of requests and tickets, deduplication of cards and records, as well as re-ranking search results.Frequently asked questions about Qwen3 Embedding 4B
You can use generated results for commercial purposes. You own all rights to the content you create. The only restriction: make sure your prompt does not include copyrighted third-party material. You are responsible for respecting the rights to any input data.
The model converts text into vector representations that reflect meaning rather than word matches. This is used to build semantic search, RAG pipelines with knowledge bases, document clustering and deduplication, request classification, finding similar materials, and ranking search results.
The output is not text, but a fixed-dimension numerical vector for each fragment. Such vectors are stored in Qdrant, pgvector, or other storage and compared by cosine similarity. A context of up to 32,768 tokens allows encoding long documents without splitting them into small pieces.
This is an embedding model: it does not perform chain-of-thought reasoning or formulate answers, but only encodes input text into a vector. Reasoning logic is implemented by a generative model to which you pass the fragments found via vector search in a RAG scheme.
Our data does not indicate such capabilities for the model, and it is atypical for embeddings: the API response is already structured as an array of numbers in JSON. It is more convenient to attach tools and function calling to a generative model connected via the same BotHub API.
The acceptance of other modalities is not indicated in our data, so expect text input: queries, document paragraphs, product descriptions, tickets. For media, use separate models, and then vectorize their text transcripts and descriptions with this model.
The Qwen3 Embedding series was developed as multilingual, so Russian documents and queries are encoded in a common semantic space and found by meaning, not by exact word matches. You should check the quality on your corpus with a test set: label query-document pairs and measure search metrics.