# Customization

> For the complete documentation index, see [llms.txt](/llms.txt)

> Customize the Biel.ai widget appearance, behavior, AI settings, and data sources.

Configure the Biel.ai widget appearance, behavior, and AI settings.

<section className="row">
  <article className="col col--6">
    
      Widget
      Configure widget properties and positioning
    
  </article>
  <article className="col col--6">
    
      Styles
      Customize colors, fonts, and CSS
    
  </article>
  <article className="col col--6">
    
      Dark mode
      Enable dark mode support
    
  </article>
  <article className="col col--6">
    
      Initial message
      Set the chatbot greeting message
    
  </article>
  <article className="col col--6">
    
      Suggested questions
      Add clickable question prompts
    
  </article>
  <article className="col col--6">
    
      Models
      Choose the AI model
    
  </article>
  <article className="col col--6">
    
      Prompt
      Configure AI behavior and response style
    
  </article>
  <article className="col col--6">
    
      Reasoning modes
      Control reasoning depth (Auto, Instant, Think)
    
  </article>
  <article className="col col--6">
    
      Web search
      Augment answers with real-time results from the internet
    
  </article>
  <article className="col col--6">
    
      Data privacy
      PII redaction, IP collection, Terms & Conditions
    
  </article>
  <article className="col col--6">
    
      Search
      Configure search ranking and metadata
    
  </article>
  <article className="col col--6">
    
      Search filters
      Add category filters to search results
    
  </article>
  <article className="col col--6">
    
      Embedded mode
      Render the chatbot inline in your page
    
  </article>
  <article className="col col--6">
    
      Workflows
      Multi-agent routing (Enterprise)
    
  </article>
</section>