[Voyage AI](/ai-gateway/models/labs/voyage)

# Voyage 4 Lite

Voyage 4 Lite is the lightweight Voyage 4 model. Voyage AI reports it approaches voyage-3.5 retrieval accuracy with fewer parameters, shares one embedding space with `voyage-4-large` and `voyage-4`, and supports a context window of 32K tokens with Matryoshka dimensions and quantization like the rest of the family. Your use is subject to Voyage AI's [Terms](https://www.voyageai.com/tos) & [Privacy](https://www.voyageai.com/privacy) Policies.

[Use with AI Gateway](https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Futm_source%3Dgateway-model-page%26utm_campaign%3Dai-gateway-models&title=Get+Started+with+Vercel+AI+Gateway) [View docs](https://vercel.com/docs/ai-gateway)

```
1import { embed } from 'ai';
2

3const result = await embed({
4  model: 'voyage/voyage-4-lite',
5  value: 'Sunny day at the beach',
6})
```

[Read docs](https://vercel.com/docs/ai-gateway/sdks-and-apis/ai-sdk)

[Overview](/ai-gateway/models/voyage-4-lite) [About](/ai-gateway/models/voyage-4-lite/about) [Providers](/ai-gateway/models/voyage-4-lite/providers) [Similar](/ai-gateway/models/voyage-4-lite/similar) [FAQ](/ai-gateway/models/voyage-4-lite/faq)

## [Copy link to heading](#frequently-asked-questions)Frequently Asked Questions

- What is the difference between Voyage 4 Lite and voyage-4?

    `voyage-4` is the mid-sized Voyage 4 model; Voyage AI reports it approaches voyage-3-large quality. Voyage 4 Lite uses fewer parameters; Voyage AI reports it approaches voyage-3.5 accuracy. Both share the same embedding space as `voyage-4-large`.

- How does Voyage 4 Lite compare to voyage-3.5-lite?

    Voyage 4 Lite is a Voyage 4 model with a shared embedding space and updated training. Voyage AI positions it near voyage-3.5 accuracy with fewer parameters. Moving from Voyage 3.x requires re-embedding.

- What is the context window for Voyage 4 Lite?

    32K tokens. Size chunks so single requests stay under this limit.

- Is Voyage 4 Lite suitable for production use?

    Yes. Voyage AI targets production for `voyage-4-lite`, including asymmetric setups with `voyage-4-large` document embeddings when query cost matters.

- How do I access Voyage 4 Lite through Vercel AI Gateway?

    Add your Voyage AI API key in AI Gateway settings, then send embedding requests through AI Gateway. AI Gateway authenticates requests and records usage.

- When should I move from Voyage 4 Lite to voyage-4 or voyage-4-large for queries?

    Move when you need higher query-side accuracy. If documents stay on `voyage-4-large`, you can upgrade query embeddings to `voyage-4` or `voyage-4-large` without re-vectorizing documents in that asymmetric setup.

- Do I need to re-embed my data to switch from voyage-3.5-lite?

    Yes. Voyage 3 and Voyage 4 use different embedding spaces, so you re-embed when you change generations.