Google AI Studio: gemini-2.5-flash-preview-tts

ttsproprietary

Our fastest engine for high-fidelity speech synthesis, offering low-latency and cost-efficient audio generation. Gemini 2.5 Flash TTS is best for real-time assistants, high-volume narration, and conversational use cases that require fine-grained control over voice style and pacing.

Context
8K
Max output
16K
Input price
$0.5/1M tokens
Output price
$10/1M tokens

Capabilities

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

Details

Model IDgoogle-ai-studio/gemini-2.5-flash-preview-tts
Creator Google AI
Licenseproprietary
Status—
Typetts
Input modalitiestext
Output modalitiesspeech
Open weightNo
Parameters—
Architecture—
Max chars—
Sample rate—
Voices—
Languages—
Release date—
Sourceofficial

Pricing

Input
$0.5
Output
$10
Cache write
—
Cache read
—
Batch in
—
Batch out
—

Family Comparison: gemini-2.5

ModelContextMax outPricing
Google AI Studio: gemini-2.5-flash-image-preview:free———
Google AI Studio: gemini-2.5-pro-exp-03-25:free———
Google AI Studio: gemini-2.5-pro-exp-03-25———
OpenRouter: google/gemini-2.5-flash-image-preview:free———
OpenRouter: google/gemini-2.5-pro-exp-03-25:free———
OpenRouter: google/gemini-2.5-pro-exp-03-25———
Google AI Studio: gemini-2.5-flash-lite-preview-06-17——$0.1$0.4
Google AI Studio: gemini-2.5-flash-lite-preview-09-20251.0M66K$0.1$0.4
Google AI Studio: gemini-2.5-flash-lite1.0M66K$0.1$0.4
Google Vertex AI: gemini-2.5-flash-lite-preview-06-17——$0.1$0.4
Google Vertex AI: gemini-2.5-flash-lite-preview-09-2025——$0.1$0.4
Google Vertex AI: gemini-2.5-flash-lite——$0.1$0.4
OpenRouter: google/gemini-2.5-flash-lite-preview-06-17——$0.1$0.4
OpenRouter: google/gemini-2.5-flash-lite-preview-09-2025——$0.1$0.4
OpenRouter: google/gemini-2.5-flash-lite——$0.1$0.4
Google AI Studio: gemini-2.5-flash-preview-04-17——$0.15$0.6
Google AI Studio: gemini-2.5-flash-preview-05-20:thinking——$0.15$3.5
Google AI Studio: gemini-2.5-flash-preview-05-20——$0.15$0.6
Google AI Studio: gemini-2.5-flash-preview:thinking——$0.15$3.5
Google AI Studio: gemini-2.5-flash-preview——$0.15$0.6
Google Vertex AI: gemini-2.5-flash-preview-04-17——$0.15$0.6
Google Vertex AI: gemini-2.5-flash-preview-05-20——$0.15$0.6
OpenRouter: google/gemini-2.5-flash-preview-05-20:thinking——$0.15$3.5
OpenRouter: google/gemini-2.5-flash-preview-05-20——$0.15$0.6
OpenRouter: google/gemini-2.5-flash-preview:thinking——$0.15$3.5
OpenRouter: google/gemini-2.5-flash-preview——$0.15$0.6
Google AI Studio: gemini-2.5-flash-image-preview——$0.3$2.5
Google AI Studio: gemini-2.5-flash-image66K33K$0.3$2.5
Google AI Studio: gemini-2.5-flash-preview-09-20251.0M66K$0.3$2.5
Google AI Studio: gemini-2.5-flash1.0M66K$0.3$2.5
Google AI Studio: models/gemini-2.5-flash-preview-04-17——$0.3$2.5
Google AI Studio: models/gemini-2.5-flash-preview-05-20——$0.3$2.5
Google AI Studio: models/gemini-2.5-flash——$0.3$2.5
Google Vertex AI: gemini-2.5-flash-preview-09-2025——$0.3$2.5
Google Vertex AI: gemini-2.5-flash——$0.3$2.5
OpenRouter: google/gemini-2.5-flash-image-preview——$0.3$2.5
OpenRouter: google/gemini-2.5-flash-image——$0.3$2.5
OpenRouter: google/gemini-2.5-flash-preview-09-2025——$0.3$2.5
OpenRouter: google/gemini-2.5-flash——$0.3$2.5
Google AI Studio: gemini-2.5-flash-preview-tts8K16K$0.5$10
Google AI Studio: gemini-live-2.5-flash-preview-native-audio——$0.5$2
Google AI Studio: gemini-live-2.5-flash——$0.5$2
Google AI Studio: gemini-2.5-pro-preview-tts8K16K$1$20
Google AI Studio: gemini-2.5-pro-preview-03-25——$1.25$10
Google AI Studio: gemini-2.5-pro-preview-05-06——$1.25$10
Google AI Studio: gemini-2.5-pro-preview-06-05——$1.25$10
Google AI Studio: gemini-2.5-pro-preview——$1.25$10
Google AI Studio: gemini-2.5-pro1.0M66K$1.25$10
Google AI Studio: models/gemini-2.5-pro-preview-06-05——$1.25$10
Google Vertex AI: gemini-2.5-pro-preview-05-06——$1.25$10
Google Vertex AI: gemini-2.5-pro-preview-06-05——$1.25$10
Google Vertex AI: gemini-2.5-pro——$1.25$10
OpenRouter: google/gemini-2.5-pro-preview-03-25——$1.25$10
OpenRouter: google/gemini-2.5-pro-preview-05-06——$1.25$10
OpenRouter: google/gemini-2.5-pro-preview-06-05——$1.25$10
OpenRouter: google/gemini-2.5-pro-preview——$1.25$10
OpenRouter: google/gemini-2.5-pro——$1.25$10

API

GET/v1/models/cloudflare-ai-gateway/google-ai-studio/gemini-2.5-flash-preview-tts