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Gemini 2.5 Flash TTS

gemini-2.5-flash-tts

Controllable speech generation for narration and audio delivery

Speech generation model for controllable voice, narration, and audio delivery

33K context33K context
Released2025-09-30
Relays2 sites
audio

Model information

Model ID
gemini-2.5-flash-tts
Context
32.8K
Max input
-
Max output
16.4K
Knowledge cutoff
2025-01
Open weights
Not supported
License
-
Release date
2025-09-30

Input

Text: SupportedImage: Not supportedAudio: Not supportedVideo: Not supportedPDF: Not supportedFile: Not supported

Output

Text: Not supportedImage: Not supportedAudio: SupportedVideo: Not supported

API capabilities

Reasoning: Not supportedTool call: Not supportedStructured output: UnknownTemperature: Supported

Relay Comparison

Compare token, per-request, or per-second pricing by relay channel.

How should Gemini 2.5 Flash TTS relay pricing be compared?

This Gemini 2.5 Flash TTS pricing page compares official pricing with public prices from 2 listed AI gateways. Token prices are shown in CNY per 1M tokens, while per-request, per-second, and per-character rows use the unit shown in the table. Last updated: 10/23/2026, 08:15.

Data sources
Public price catalogs, official pricing records, and monitoring results.
Metric definitions
Uptime means successful probe response rate, fake-rate signals possible model mismatch or abnormal output risk, and latency is average API response time.
Risk note
Relay gateways are third-party services. Pricing, billing, privacy, and stability can change; start with a small top-up and verify reliability before continued use.