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

# About the Models API

The H Company Models API gives developers access to the Holo3.1 Vision-Language Models. Through a single OpenAI-compatible API, you can send text, images, or both, and receive structured outputs.

The API supports web, desktop, and mobile automation, multimodal agents, and UI testing, whether you are integrating into a product, running research experiments, or building automation workflows.

* Multimodal input: send text and images together in one request.
* Structured outputs: receive responses you can act on directly for UI automation and navigation.

You can start building with Holo3.1-35B-A3B today. The API gives you hosted, low-latency access to these models, so you do not have to run the infrastructure yourself.

## Two ways to use Holo

<CardGroup cols={2}>
  <Card title="Agent loop" icon="arrows-rotate" href="/agent-loop">
    Multi-turn control for an autonomous agent.
  </Card>

  <Card title="Element localization" icon="crosshairs" href="/element-localization">
    Get click coordinates from a screenshot.
  </Card>
</CardGroup>

## Get started

<CardGroup cols={2}>
  <Card title="Quickstart" icon="rocket" href="/quickstart">
    Run Holo in five minutes.
  </Card>

  <Card title="API reference" icon="code" href="/api-reference">
    Endpoint, models, pricing, and parameters.
  </Card>
</CardGroup>

## Model cards and benchmarks

For model specs, weights, and performance, see the model cards on Hugging Face and the launch blog posts.

<CardGroup cols={3}>
  <Card title="Hugging Face" icon="book" href="https://huggingface.co/collections/Hcompany/holo31">
    Model cards, weights, and quantized builds.
  </Card>

  <Card title="Holo3.1 release" icon="newspaper" href="https://hcompany.ai/holo3.1">
    Mobile, function calling, and local inference.
  </Card>

  <Card title="Holo3 benchmarks" icon="trophy" href="https://hcompany.ai/holo3">
    78.85% on OSWorld-Verified.
  </Card>
</CardGroup>

<Note>
  Prefer to try the models without writing code? [HoloTab](https://hcompany.ai/meet-holotab) runs Holo directly in your browser, no setup required.
</Note>