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Baidu Text-to-Speech

Baidu Text-to-Speech · Beijing, China · founded 2000

Plans and prices

Short-text Basic Voice Library

Priced on request

1,000 thousand calls · 100 concurrent requests

Short-text Premium Voice Library

Priced on request

1,000 thousand calls · 100 concurrent requests

Short-text Large-model and Premium Voice Library

Priced on request

1,000 thousand calls · 10 concurrent requests

Long-text Basic Voice Library

Priced on request

1,000,000 characters

Long-text Premium Voice Library

Priced on request

1,000,000 characters

Long-text Large-model and Premium Voice Library

Priced on request

1,000,000 characters

Streaming Basic Voice Library

Priced on request

1,000,000 characters · 10 concurrent requests

Streaming Premium Voice Library

Priced on request

1,000,000 characters · 10 concurrent requests

Streaming Large-model and Premium Voice Library

Priced on request

1,000,000 characters · 10 concurrent requests

Every plan, in full

On the record

API access
Yescloud.baidu.com · read 20 Sep 2026
Company founded
Baidu states that it was incorporated in 2000.ir.baidu.com · read 12 Oct 2026
Company headquarters
Baidu states that its headquarters are in Beijing, China.ir.baidu.com · read 12 Oct 2026
Export formats
mp3,pcm,wavcloud.baidu.com · read 20 Sep 2026
Interfaces
Baidu offers HTTP or WebSocket APIs and online and offline SDKs.cloud.baidu.com · read 12 Oct 2026
Languages
2cloud.baidu.com · read 20 Sep 2026
Long text limit
Long-text synthesis supports conversion of up to 100,000 Chinese characters in one request.cloud.baidu.com · read 12 Oct 2026
Maximum input
60cloud.baidu.com · read 20 Sep 2026
Mobile SDKs
The online synthesis page lists Android and iOS SDKs for phones and smart devices.cloud.baidu.com · read 12 Oct 2026
Offline use
Offline synthesis is intended for weak or unavailable network environments, including mobile apps, readers, robots, and smart hardware.cloud.baidu.com · read 12 Oct 2026
Personal information safeguards
The speech synthesis SDK privacy policy says Baidu uses encryption and protection mechanisms against malicious attacks to protect personal information.cloud.baidu.com · read 12 Oct 2026
Privacy guidance
Baidu's SDK personal-information compliance guide asks app developers to disclose the SDK's personal-information collection, methods, and purposes in their privacy policy.cloud.baidu.com · read 12 Oct 2026
Purpose
Converts text into natural-sounding speech for applications and devices.cloud.baidu.com · read 12 Oct 2026
Short-text request limit
Short-text API input must be under 1,024 GBK bytes, with each request recommended to be no more than 120 bytes.cloud.baidu.com · read 12 Oct 2026
Streaming
Streaming synthesis supports bidirectional text and speech so synthesized audio can be heard nearly as text is entered.cloud.baidu.com · read 12 Oct 2026
Use cases
Listed use cases include audiobook reading, news announcements, order announcements, and smart hardware.cloud.baidu.com · read 12 Oct 2026
Voice and language options
The online service supports Chinese, English, mixed Chinese-English speech, and more than 70 voice styles.cloud.baidu.com · read 12 Oct 2026
Voice cloning
Yescloud.baidu.com · read 20 Sep 2026

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