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

# Choose Your Model

> Find the right Sanas model for your use case

Not sure which model to use? Answer one question to find the right fit. SDKs will be available for download in Self serve mode from [Developer Console](https://www.sanas.ai/developer-platform).

## Who is listening?

<CardGroup cols={2}>
  <Card title="A person is listening" icon="users">
    You need a **Human ↔ Human** model. Voice quality and naturalness matter.
  </Card>

  <Card title="A machine is listening" icon="robot">
    You need a **Human ↔ Machine** model. Relative Word Error Rate (RWERR) reduction and ASR accuracy matter.
  </Card>
</CardGroup>

## Human ↔ Human

| Model                                                | Model Name                                | Scenario                              | Description                                                                                                                         |
| ---------------------------------------------------- | ----------------------------------------- | :------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------- |
| Speech Enhancement · Voice Isolation (General)<br /> | `VI_G_SE`                                 | Noisy environment, human listener     | SE · Voice Isolation (General)<br />                                                                                                |
| Speech Enhancement Standard<br />                    | `SE2.1`                                   | Telephony audio restoration, low CPU  | Restores and enhances voice quality, outputs 8kHz                                                                                   |
| Speech Enhancement with Full-Fidelity<br />          | `SE2.2`                                   | Full-fidelity audio restoration       | Bandwidth extension to ultra-fidelity 24kHz                                                                                         |
| Accent Translation<br />                             | `AT5.2`                                   | Accent Normalization                  | Add Accent Translation to your application to modifies global accents in real-time, allowing your teams to be instantly understood. |
| Language Translation<br />                           | [LT](/Docs/Language-Translation/Overview) | Voice-preserving Language translation | Add real-time speech-to-speech language translation to your application that preserves your speakers' voices, tone, and intent.     |

## Human ↔ Machine

| Model                                    | Model Name         | Scenario                              | Description                                                                                                                                               |
| ---------------------------------------- | ------------------ | ------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Agentic SE · Voice Isolation (General)   | `AGENTIC_VI_G_SE`  | Single speaker → ASR (16kHz)          | Removes environmental noise and distant human voices. Single-speaker isolation for voice agents, IVR, phone bots                                          |
| Agentic SE · Voice Isolation (Telephony) | `AGENTIC_VI_GT_SE` | Single speaker → ASR (8kHz telephony) | Telephony-optimized variant of Voice Isolation for 8kHz narrowband audio                                                                                  |
| Agentic SE · Standard                    | `AGENTIC_ST_SE`    | Multiple speakers → ASR               | Agentic SE · StandardRemoves environmental noise, preserves distant human speech. Multi-speaker environments where background conversations carry context |

<Tip>
  More models and model updates are coming soon.
</Tip>

## Still Not Sure?

Explore audio samples, full specifications, use cases, and code examples:

<CardGroup cols={3}>
  <Card title="Speech Enhancement · Voice Isolation (General)" icon="volume-slash" href="/Docs/Models/Human-Human/NC-Voice-Isolation">
    **`VI_G_SE`**

    Isolates intended speech by removing background noise and voices. Optimized for human listeners.
  </Card>

  <Card title="Speech Enhancement · Standard" icon="microphone" href="/Docs/Models/Human-Human/SE-Standard">
    **`SE2.1`**

    Restores and enhances voice quality for telephony audio. Low CPU footprint.
  </Card>

  <Card title="Speech Enhancement · Full Fidelity" icon="microphone" href="/Docs/Models/Human-Human/SE-Ultra">
    **`SE2.2`**

    Full-fidelity speech enhancement with bandwidth extension to ultra-fidelity 24kHz.
  </Card>

  <Card title="Agentic Speech Enhancement · Voice Isolation (General)" icon="robot" href="/Docs/Models/Human-Machine/Agentic-NC-Voice-Isolation">
    **`AGENTIC_VI_G_SE`**

    Removes background noise and distant voices for complete voice isolation of the primary speaker's audio stream.
  </Card>

  <Card title="Agentic Speech Enhancement · Voice Isolation (Telephony)" icon="robot" href="/Docs/Models/Human-Machine/Agentic-NC-Voice-Isolation-Telephony">
    **`AGENTIC_VI_GT_SE`**

    Telephony-optimized variant of Voice Isolation for 8kHz narrowband audio.
  </Card>

  <Card title="Agentic Speech Enhancement · Standard" icon="robot" href="/Docs/Models/Human-Machine/Agentic-NC-Standard">
    **`AGENTIC_ST_SE`**

    Removes background noise while preserving all human speech for multi-speaker environments.
  </Card>

  <Card title="Accent Translation" icon="robot" href="/Docs/Models/Human-Machine/Agentic-NC-Standard">
    `AT5.2`

    Accent Translation modifies global accents in real-time, allowing your teams to be instantly understood while preserving what makes every voice unique.
  </Card>

  <Card title="Language Translation" icon="robot" href="/Docs/Models/Human-Human/Language-Translation/Language-Translation">
    [LT](/Docs/Models/Human-Human/Language-Translation/Language-Translation)

    Real-time language translation that preserves your speakers' voices, tone, and intent.
  </Card>
</CardGroup>