gemini-2.5-pro-preview-tts

ttsproprietary

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.

Context
8K
Max output
16K
Input price
$1/1M tokens
Output price
$20/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing

Details

Provider Google AI
Creator google
Familygemini-2.5
Licenseproprietary
Statusactive
Typetts
Input modalitiesaudio, image, text
Output modalitiesspeech
Open weightNo
Parameters—
Architecture—
Max chars—
Sample rate—
Voices—
Languages—
Release date—
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Endpoints

Generate ContentPOST
Generate text from multimodal inputhttps://generativelanguage.googleapis.com/v1beta/v1beta/models/{model}:generateContent
Stream ContentPOST
Stream text generation responseshttps://generativelanguage.googleapis.com/v1beta/v1beta/models/{model}:streamGenerateContent

Pricing

Text tokensPer 1M tokens
InputCached inputOutput
Standard$1—$20
Batch$0.5—$10

Family Comparison: gemini-2.5

ModelContextMax outPricing
gemini-2.5-flash-image-preview———
gemini-2.5-flash-lite-preview-09-20251.0M66K—
gemini-2.5-flash-native-audio-preview-12-2025131K8K—
gemini-2.5-flash-preview-05-20———
gemini-2.5-flash-preview-09-20251.0M66K—
gemini-2.5-flash-preview-09-25———
gemini-2.5-pro-preview-03-25———
gemini-2.5-pro-preview-05-06———
gemini-2.5-pro-preview-06-05———
gemini-live-2.5-flash-preview———
gemini-2.5-flash-lite1.0M66K$0.1$0.4
gemini-2.5-flash-image66K33K$0.3$0.04
gemini-2.5-flash1.0M66K$0.3$2.5
gemini-2.5-flash-preview-tts8K16K$0.5$10
gemini-2.5-pro-preview-tts8K16K$1$20
gemini-2.5-computer-use-preview-10-2025128K64K$1.25$10
gemini-2.5-pro1.0M66K$1.25$10

API

GET/v1/models/google/gemini-2.5-pro-preview-tts