Search and RAG

Voyage 4 nano

The only open model in the Voyage 4 line: its vectors are compatible with the paid larger versions, so you can start locally and move to the API later.

Developer
Voyage AI (MongoDB), USA
First release
Jan 2026
Latest release
Jan 2026
Sizes
about 340M
License
Commercial use allowedApache 2.0
Russian
Not stated
Running
On your own serverAlso runs without a GPU
Industries
Software development, Documents and accounting, Customer support
Deploy on your server Hugging Face

What it does

  • Document search on your own server
  • RAG for small knowledge bases
  • Finding similar texts

Where it is used

Small and mid-sized businessesKnowledge basesCustomer support

Hardware requirements

LaptopLaptop or regular PC, up to 8 GB of VRAM — smaller versions
fits
1 GPUOne GPU with 16–80 GB — mid-size versions
no versions
ClusterServer with several GPUs — flagship versions
no versions

Versions

  1. voyage-4-nano

How to run it

On your own serverWeights are downloaded from Hugging Face and served with vLLM (load and API) or llama.cpp (modest hardware). The model then runs in a closed network with no per-request fees.Hugging Face
How much hardware you needCalculate the VRAM for the model size, context length and number of concurrent requests.Open the hardware calculator

I can set this up end to end: pick the model size, deploy it on your server and connect it to your systems.

Frequently asked questions

Can Voyage 4 nano be used in a commercial project?

Yes. License: Apache 2.0. It allows commercial use, but it is still worth having a lawyer review the license before launch.

What hardware does Voyage 4 nano need?

At minimum: Laptop or regular PC, up to 8 GB of VRAM — smaller versions. Some versions also run on an ordinary CPU, without a GPU. You can calculate the exact VRAM for your model size and context in the hardware calculator.

Does Voyage 4 nano support Russian?

The model card does not list languages, so Russian support cannot be promised — it has to be tested on your own examples.

Where can I download Voyage 4 nano and what does it cost?

The Voyage 4 nano weights are open and free to download. You only pay for the hardware it runs on and for the setup. Source links are at the bottom of this page.

How I deploy it for clients

  1. SelectionI pick the model size for your task and hardware and test it on your examples.
  2. DeploymentI deploy it on your server or in a closed network and provide an API.
  3. Fine-tuningI fine-tune it on your data (LoRA) or connect a knowledge base — whichever is cheaper for the task.
  4. IntegrationI connect it to your CRM, ERP, bot, website or team chat and set up monitoring.

Similar models

Search and RAGpplx-embedPerplexity · USACommercial use allowed

Embeddings from the Perplexity search service. Some versions take into account the context of the whole document, not just a single fragment.

DetailsSearch and RAGGranite EmbeddingIBM · USACommercial use allowed

Lightweight IBM embeddings for enterprise search, trained on data with clear rights. R2, released in 2026, became multilingual.

Details

Source: huggingface.co/voyageai/voyage-4-nano. Data checked against the model card on 22 Sep 2026. Have a lawyer review the license before commercial launch.