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

# TTS Models

Inworld provides a family of state-of-the-art TTS models, optimized for different use cases, quality levels, and performance requirements.

<CardGroup cols={2}>
  <Card title="Realtime TTS-2" icon="wand-magic-sparkles">
    ### Our most powerful and expressive model, available in Research Preview

    * Natural language steering for more contextually aware speech
    * Support for 100+ languages
    * Optimized for real-time use
    * High quality instant voice cloning
    * Enhanced timestamps with phonetic details and visemes
  </Card>

  <Card title="Realtime TTS 1.5 Max" icon="sparkles">
    ### Our flagship model, delivering the best balance of quality and speed

    * Rich, expressive, contextually aware speech
    * Support for 15 languages
    * Optimized for real-time use (\<200ms median latency)
    * High quality instant voice cloning
    * Enhanced timestamps with phonetic details and visemes
  </Card>

  <Card title="Realtime TTS 1.5 Mini" subtitle="Our ultra-fast model" icon="bolt">
    ### Our ultra-fast, most cost-efficient model. For when latency is the top priority.

    * Ultra-low latency (\~120ms median latency)
    * Support for 15 languages
    * Radically affordable pricing
    * High quality instant voice cloning
    * Enhanced timestamps with phonetic details and visemes
  </Card>
</CardGroup>

### Models overview

| **Name**                                                                       | **Model ID**                                                 | **Description**                                                                                       | **Supported languages**                                                                  |
| :----------------------------------------------------------------------------- | :----------------------------------------------------------- | :---------------------------------------------------------------------------------------------------- | :--------------------------------------------------------------------------------------- |
| **Llama Realtime TTS-2**                                                       | `inworld-tts-2`                                              | Our newest, most powerful model with natural language steering and stronger multilingual capabilities | 100+ languages — see [Languages](/tts/capabilities/multilingual)                         |
| **Llama Realtime TTS 1.5 Max**                                                 | `inworld-tts-1.5-max`                                        | #1 ranked model, best balance of quality and speed, with enhanced timestamps                          | `en`, `zh`, `ja`, `ko`, `ru`, `it`, `es`, `pt`, `fr`, `de`, `pl`, `nl`, `hi`, `he`, `ar` |
| **Llama Realtime TTS 1.5 Mini**                                                | `inworld-tts-1.5-mini`                                       | Ultra-fast, most cost-efficient model, with enhanced timestamps                                       | `en`, `zh`, `ja`, `ko`, `ru`, `it`, `es`, `pt`, `fr`, `de`, `pl`, `nl`, `hi`, `he`, `ar` |
| **Llama Realtime TTS Max** <span className="deprecated-pill">Deprecated</span> | `inworld-tts-1-max`                                          | Our most powerful previous generation model, with basic timestamps support                            | `en`, `de`, `es`, `fr`, `it`, `ja`, `ko`, `nl`, `pl`, `pt`, `ru`, `zh`, `hi`             |
| **Llama Realtime TTS** <span className="deprecated-pill">Deprecated</span>     | `inworld-tts-1`                                              | Our fastest previous generation model, with basic timestamps support                                  | `en`, `de`, `es`, `fr`, `it`, `ja`, `ko`, `nl`, `pl`, `pt`, `ru`, `zh`, `hi`             |

<Note>
  `inworld-tts-1` and `inworld-tts-1-max` are deprecated and will be retired in the near future. We will communicate the exact retirement date once finalized to users with advance notice to ensure a smooth transition. We recommend migrating to `inworld-tts-1.5-mini` and `inworld-tts-1.5-max` as soon as possible to avoid disruptions.
</Note>