CosyVoice

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Overview

Synthesis Capabilities: CosyVoice-v3-Flash is the latest high-performance speech synthesis model in the CosyVoice series from Tongyi Labs, offering improved naturalness, timbre, prosody, and emotional expressiveness compared to previous versions. This model supports real-time streaming text-to-speech synthesis. Cloning Capabilities: CosyVoice-v3-Flash is also the latest speech cloning model in the CosyVoice series from Tongyi Labs. Compared to previous versions, it improves pronunciation accuracy and timbre similarity, and adds support for more less commonly spoken languages (German, Spanish, French, Italian, Russian). It can quickly generate highly similar and naturally sounding custom voices from just 5-20 seconds of reference audio.

Input

Text

Output

Audio

Features

Prefix Completion

Enable Partial Mode when calling the Qwen API to make the model continue strictly from your provided prefix text.View docs

Function Calling

Use function calling to connect large language models with external tools and systems.View docs

Cache

Context Cache stores shared prefixes for long-context requests to reduce repeated computation, improve latency, and lower cost.View docs

Structured Outputs

Structured Outputs help ensure the model returns a JSON string in the expected format.View docs

Batches

Asynchronously process requests in batches to reduce costs.View docs

Web Search

Enable web search so the model can answer with real-time retrieved data.View docs

Fine-tuning

Train models on sample data to better adapt them to specific tasks.View docs

Pricing

TTS
$0.13Per 10,000 characters

Rate Limits

RPMRequests Per Minute
180

API Reference

Call API

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# coding=utf-8

import dashscope
from dashscope.audio.tts_v2 import *

# If the API Key is not configured in the environment variable, your-api-key needs to be replaced with your own API Key
# dashscope.api_key = "your-api-key"

model = "cosyvoice-v3-flash"
voice = "longanyang"

synthesizer = SpeechSynthesizer(model=model, voice=voice)
audio = synthesizer.call("今天天气怎么样？")

with open('output.mp3', 'wb') as f:
    f.write(audio)