> ## Documentation Index
> Fetch the complete documentation index at: https://vibewax.be/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# AI models

Vibewax runs on several AI models, and you can choose which one the agent uses. They differ in how carefully they work, how fast they are, and how many credits they use.

## Which model to pick

We recommend staying on the default until you have a reason to change. It is the fastest and most economical option, so the usual reason to switch is a feature that calls for more careful work. Models within each group are close in strength, so there is rarely a wrong choice between them.

Every model shows the region where it runs. If your project data needs to stay in the EU, pick a model marked EU.

<Tip>
  You can use different models for different jobs in the same project. Add a complex feature with one, then switch to a faster one for the small changes that follow.
</Tip>

### For complex work

Works through more of the detail before it starts building, which usually means fewer rounds of corrections. Worth it for user accounts, payments, or more complex logic.

<CardGroup cols={3}>
  <Card title="Claude Opus 5.5" icon="https://vibewax.be/docs/images/models/claude.svg">
    EU
  </Card>

  <Card title="GPT-6.1 Sol" icon="https://vibewax.be/docs/images/models/openai.svg">
    US
  </Card>
</CardGroup>

### For everyday building

The balance most projects want. Good for first drafts, new pages, and general changes.

<CardGroup cols={3}>
  <Card title="Claude Sonnet 5.5" icon="https://vibewax.be/docs/images/models/claude.svg">
    Global
  </Card>

  <Card title="GPT-5.6 Terra" icon="https://vibewax.be/docs/images/models/openai.svg">
    US
  </Card>

  <Card title="Grok 4.6" icon="https://vibewax.be/docs/images/models/grok.svg">
    US
  </Card>

  <Card title="Kimi K3" icon="https://vibewax.be/docs/images/models/kimi.svg">
    US
  </Card>
</CardGroup>

### For speed and efficiency

Capable models that work faster and use far fewer credits. Good for text and style tweaks, quick iterations, and long sessions where you want your credits to stretch further.

<CardGroup cols={3}>
  <Card title="GLM 5.3 Flash">
    Default · EU
  </Card>

  <Card title="GLM 5.3">
    EU
  </Card>

  <Card title="GPT-6 Luna" icon="https://vibewax.be/docs/images/models/openai.svg">
    US
  </Card>
</CardGroup>

## Where to choose a model

You can set the model in two places. The project setting always wins over the account setting.

- **For all your chats:** Open **Settings**, go to the **Preferences** tab, and pick a model under **AI**. Every chat uses this model unless you choose something different inside that chat.
- **For one project:** Open the chat, go to the **Settings** tab, and pick a model under **AI Model**. Leave it on **Use default** to follow your account setting.

## Frequently asked questions

<AccordionGroup>
  <Accordion title="Can I choose which AI model Vibewax uses?">
    Yes. Vibewax runs on several models from different companies, and you can pick which one the agent uses. GLM 5.3 Flash is the default. It is fast and cheap on credits, and works well for most everyday changes. See AI models for the full list and what each one suits.
  </Accordion>

  <Accordion title="Where do I change the model?">
    You can change the model in two places. To change it for all your chats, open **Settings**, go to the **Preferences** tab, and pick a model under **AI**. To pick a model for one specific project, open that chat, go to the **Settings** tab, and pick a model under **AI Model**. The setting in a project always takes precedence over the setting in your account.
  </Accordion>

  <Accordion title="Which model should I use?">
    Stay on the default unless you have a reason to change. Move up to a model built for complex work when you are adding something like user accounts, payments, or more complex logic. Drop to a faster, cheaper one for text edits and small tweaks. See AI models for the current options.
  </Accordion>

  <Accordion title="Two models look similar. How do I choose between them?">
    Each company builds its models differently, and the differences show up more in style than in what the model can do. Which one suits you often comes down to the project and to personal preference, so it is worth trying a few.
  </Accordion>

  <Accordion title="Does the model I choose change how many credits I use?">
    Yes. Credit use depends on the selected model’s rates and the tokens it processes and generates. The size of the change and the length of the conversation also play a part.
  </Accordion>

  <Accordion title="Where do the models run?">
    Every model is marked **EU**, **US**, or **Global**. Global routing can process requests in different regions, including outside the EU. If your project handles personal data and you need that data to stay in the EU, pick a model marked **EU**.
  </Accordion>

  <Accordion title="Can I change the model in the middle of a project?">
    Yes. Your choice applies to your next message. Everything the agent has already built stays as it is, and it keeps the full history of your project, so you can switch models at any point without losing anything.
  </Accordion>

  <Accordion title="My project uses a model that is not in the list. What happened?">
    Projects you started a while ago may still be set to a model that has since been retired. Those projects keep working. They now run on the newer version of the same model, so you get the improvements without doing anything. New chats always use the current lineup.
  </Accordion>
</AccordionGroup>


This page is part of the [Vibewax documentation](https://vibewax.be/docs/en/welcome/overview).