> ## 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 instant access to our latest **Holo3.1 Vision-Language Models**. With a single OpenAI-compatible API, you can send text, images, or both, and receive structured outputs for a wide range of applications.

We built this API to make it easy for developers to experiment, prototype, and build with Holo3.1 models — from web, desktop, and mobile automation to multimodal agents and UI testing. Whether you’re integrating into your product, running research experiments, or exploring automation workflows, the Models API is designed to be fast, flexible, and developer-friendly.

* **Multimodal input support**: Send text and images together for advanced interactions.
* **Structured outputs**: Receive actionable responses for UI automation, navigation, and more.

We encourage you to try it out and start building with Holo3.1-35B-A3B today. The API provides low-latency, high-throughput access to these models so you can focus on building, not infrastructure.

## 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>