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

# Which models are available?

> Find the models you can call through SLNG.

The models you can call depend on two things: your project's region and language,
and how each model runs. A model runs one of three ways, hosted by SLNG in your
region, proxied through SLNG to the provider, or on your own provider account. In
the dashboard these appear as the **SLNG models** and **BYOK** tabs on every model
dropdown; in the API the route is part of the model ID.

## Where a model can run

Prefer an SLNG-hosted model where one fits. It runs in your region and skips the hop
to an outside provider, which is the lowest-latency path. Reach for a proxied or BYOK
route when a model you need is not SLNG-hosted in your region, or when the provider
account must stay in your name.

The model ID names where the model runs:

| Route                               | Runs on                                     |
| ----------------------------------- | ------------------------------------------- |
| `slng/deepgram/nova:3-en`           | SLNG infrastructure, in your region         |
| `deepgram/nova:3`                   | The provider, through SLNG. No key required |
| `deepgram/nova:3` + your credential | The provider, on your own account (BYOK)    |

The `slng/` prefix is an API-only form. To run a model on your own account, register
the key first; see [Bring your own key](/guides/models/bring-your-own-key).

## See what's available to you

Each model is offered per region and language, so the list you see is filtered to
what your project supports.

<Tabs>
  <Tab title="Dashboard" icon="monitor">
    Open your project and open any model dropdown on **Listen**, **Think**, or
    **Speak**. Each dropdown lists the models valid for the project's region and
    language, split into the **SLNG models** and **BYOK** tabs.

    <Frame caption="A model dropdown, with the SLNG models and BYOK tabs.">
      <img src="https://mintcdn.com/slng-new-docs/_MURdOw87SJsfVag/heroshots/slng-speak-model.png?fit=max&auto=format&n=_MURdOw87SJsfVag&q=85&s=6dc4131aeccf0f2b09f4f66482db79ed" alt="A model dropdown open, showing the SLNG models and BYOK tabs" width="2560" height="1600" data-path="heroshots/slng-speak-model.png" />
    </Frame>
  </Tab>

  <Tab title="API" icon="code">
    Call the catalog endpoint on your regional host to list the models available for
    that region. Only the host changes between regions; the path stays the same. To
    browse the same published data in the documentation, see
    [All models](/models/catalog/all-models).

    ```bash theme={null}
    curl "https://eu-west.api.slng.ai/v1/catalog/models?page_size=100" \
      -H "Authorization: Bearer $SLNG_API_KEY"
    ```

    ```json Response expandable theme={null}
    {
      "items": [
        {
          "code": "deepgram/aura:2",
          "name": "Aura 2",
          "service_type": "TTS",
          "provider_code": "deepgram",
          "hosted_by": "Deepgram",
          "available_regions": ["au", "eu-west", "us-east"]
        }
      ],
      "meta": {
        "page": 1,
        "page_size": 100,
        "total": 14,
        "pages": 1
      }
    }
    ```
  </Tab>

  <Tab title="CLI" icon="square-terminal">
    From a coding agent, the [`voiceai` CLI](/integrations/sdks/cli) lists the
    currently deployed models. A `★` marks an SLNG-hosted model; the rest are
    proxied through SLNG.

    ```bash theme={null}
    voiceai models --stt
    ```

    ```text Output expandable theme={null}
    STT models:
    ★ Nova 3 English (slng/deepgram/nova:3-en)
    ★ Nova 3 Spanish (slng/deepgram/nova:3-es)
    ★ Nova 3 Hindi (slng/deepgram/nova:3-hi)
    ★ Nova 3 Indonesian (slng/deepgram/nova:3-id)
    ★ Nova 3 Kannada (slng/deepgram/nova:3-kn)
    ★ Nova 3 Marathi (slng/deepgram/nova:3-mr)
    ★ Nova 3 Multi (slng/deepgram/nova:3-multi)
    ★ Nova 3 Telugu (slng/deepgram/nova:3-te)
    ★ Speechmatics Batch (slng/speechmatics/batch:15.0.0)
    ★ Speechmatics realtime v2 (slng/speechmatics/realtime:v2)
      Nova 3 (deepgram/nova:3)
      Nova 3 Medical (deepgram/nova:3-medical)
      Fish STT (fish/asr:default)
      Gradium STT (gradium/stt:default)
      Resonant 1 (reson8/reson8stt:v1)
      Saaras V3 (sarvam/saaras:v3)
      STT AI RT V3 (soniox/speech-ai:rt-v3)
      STT AI RT V4 (soniox/speech-ai:rt-v4)
      STT AI RT V5 (soniox/speech-ai:rt-v5)
    ```

    Use `--tts` for text-to-speech models:

    ```bash theme={null}
    voiceai models --tts
    ```
  </Tab>
</Tabs>

## Browse the full catalog

For the complete lists, see the model catalog:
[all models](/models/catalog/all-models),
[speech to text](/models/catalog/speech-to-text),
[text to speech](/models/catalog/text-to-speech),
[LLM models](/models/catalog/llm-models),
[by region](/models/catalog/by-region), and
[by language](/models/catalog/by-language).

<Note>
  Voices are separate from text to speech models, and each model has its own set.
  Pick the model first, then a voice that belongs to it. For the voice catalog, see
  [Cartesia voices](/models/voices/cartesia-sonic-3) and
  [Gradium voices](/models/voices/gradium).
</Note>

## Next steps

* [Configure Listen](/guides/agents/configure/listen),
  [Think](/guides/agents/configure/think), and
  [Speak](/guides/agents/configure/speak)
* [Bring your own key](/guides/models/bring-your-own-key)