OpenAI: TTS-1 (Text to Audio)

openai/tts-1/text-to-audio

TTS is a model that converts text to natural sounding speech. TTS is optimized for realtime or interactive scenarios. For offline scenarios, TTS-HD provides higher quality. The API supports six different voices. Max request data size: 4,096 chars can be converted from text to speech per API request.

Model specifications

Input
text
Output
audio
Context
10,000 tokens
Max output
10,000 tokens
Input price
5 / 1M tokens
Output price
$0 / 1M tokens
Released
2026-02-18

Capabilities

  • Streaming

Provider pricing, discounts and data privacy

Compare effective provider prices, published discounts, regions, retention policies, training use, compliance, and privacy links by service tier.

Standard service tier

1 available provider · tier input average 5 / 1M tokens

Azure

Tier: Standard · Region: US

Pricing
Input
5 / 1M tokens

No provider discount is currently published.

Data privacy and compliance
Region
US
Zero data retention
Yes
Data retention
Zero retention
Used for training
No
Data collection
Moderated
No
GDPR compliant
Yes
HIPAA compliant
Yes
SOC 2 certified
Yes
BYOK supported
No

Privacy policy · Terms · Official website · Documentation · Status

Frequently asked questions

What is OpenAI: TTS-1 (Text to Audio)?
TTS is a model that converts text to natural sounding speech. TTS is optimized for realtime or interactive scenarios. For offline scenarios, TTS-HD provides higher quality. The API supports six different voices. Max request data size: 4,096 chars can be converted from text to speech per API request.
How much does OpenAI: TTS-1 (Text to Audio) cost?
Input costs start at 5 / 1M tokens and output costs start at $0 / 1M tokens. Provider-level prices vary by service tier.
What is the context length of OpenAI: TTS-1 (Text to Audio)?
OpenAI: TTS-1 (Text to Audio) supports a 10,000 token context window and up to 10,000 output tokens.
What capabilities does OpenAI: TTS-1 (Text to Audio) support?
OpenAI: TTS-1 (Text to Audio) supports Streaming.
Which providers offer OpenAI: TTS-1 (Text to Audio)?
OpenAI: TTS-1 (Text to Audio) is available from Azure.
How do providers handle data privacy for OpenAI: TTS-1 (Text to Audio)?
1 of 1 providers report that customer data is not used for training, and 1 offer zero-data-retention routing. Retention, compliance, and privacy-policy links are listed per provider.

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