> ## AI Agent Context
> Get the complete documentation index at: https://aistudio.google.com/llms.txt
> Use this file to discover all available pages.
> For the full documentation in a single file, fetch: https://aistudio.google.com/llms-full.txt

# Gemini 2.5 Pro text-to-speech

Our premium engine for studio-quality speech synthesis, offering high-fidelity
and sophisticated audio generation. Gemini 2.5 Pro TTS is best for long-form
content, professional narrations, and complex creative workflows that require
the highest level of vocal clarity and natural prosody.

{% button href="https://aistudio.google.com?model=gemini-2.5-pro-preview-tts" variant="ais" %}Try in Google AI Studio{% /button %}

## Documentation  {% id="documentation" %}

Visit the [Text-to-Speech](/docs/speech-generation) guide for full
coverage of features and capabilities.

## gemini-2.5-pro-preview-tts  {% id="gemini-25-pro-preview-tts" %}

{% table variant="model" %}
  * Property
  * Description

  ---

  *     {% section class="model-property" %}
  {% icon name="id_card" /%}Model code

    {% /section %}

  * `gemini-2.5-pro-preview-tts`

  ---

  *     {% section class="model-property" %}
  {% icon name="save" /%}Supported data types

    {% /section %}

  *     **Inputs** Text

    **Output** Audio


  ---

  *     {% section class="model-property" %}
  {% icon name="token_auto" /%}Token limits{% sup %}[[*]](/docs/tokens){% /sup %}

    {% /section %}

  *     **Input token limit** 8,192

    **Output token limit** 16,384


  ---

  *     {% section class="model-property" %}
  {% icon name="handyman" /%}Capabilities

    {% /section %}

  *     {% section class="three-column-grid" %}
  {% section %}
  [**Audio generation**](/docs/speech-generation)

  {% badge type="supported" /%}

  {% /section %}

  {% section %}
  [**Batch API**](/docs/batch-api)

  {% badge type="supported" /%}

  {% /section %}

  {% section %}
  [**Caching**](/docs/caching)

  {% badge type="not-supported" /%}

  {% /section %}

  {% section %}
  [**Code execution**](/docs/code-execution)

  {% badge type="not-supported" /%}

  {% /section %}

  {% section %}
  [**File search**](/docs/file-search)

  {% badge type="not-supported" /%}

  {% /section %}

  {% section %}
  [**Function calling**](/docs/function-calling)

  {% badge type="not-supported" /%}

  {% /section %}

  {% section %}
  [**Grounding with Google Maps**](/docs/maps-grounding)

  {% badge type="not-supported" /%}

  {% /section %}

  {% section %}
  [**Image generation**](/docs/image-generation)

  {% badge type="not-supported" /%}

  {% /section %}

  {% section %}
  [**Live API**](/docs/live-api)

  {% badge type="not-supported" /%}

  {% /section %}

  {% section %}
  [**Search grounding**](/docs/google-search)

  {% badge type="not-supported" /%}

  {% /section %}

  {% section %}
  [**Structured outputs**](/docs/structured-output)

  {% badge type="not-supported" /%}

  {% /section %}

  {% section %}
  [**Thinking**](/docs/thinking)

  {% badge type="not-supported" /%}

  {% /section %}

  {% section %}
  [**URL context**](/docs/url-context)

  {% badge type="not-supported" /%}

  {% /section %}

    {% /section %}


  ---

  *     {% section class="model-property" %}
  {% icon name="123" /%}Versions

    {% /section %}

  *     Read the [model version patterns](/docs/models#model-versions) for more details.

    *   `gemini-2.5-pro-preview-tts`


  ---

  *     {% section class="model-property" %}
  {% icon name="calendar_month" /%}Latest update

    {% /section %}

  * December 2025

  ---

  *     {% section class="model-property" %}
  {% icon name="paid" /%}Pricing

    {% /section %}

  * [Pricing](/docs/pricing#gemini-2.5-pro-preview-tts)
{% /table %}