OpenAI: TTS-1-HD (Text to Audio)
openai/tts-1-hd/text-to-audio
TTS-HD 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
- $33 / 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 $33 / 1M tokens
Azure
Tier: Standard · Region: US
Pricing
- Input
- $33 / 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-HD (Text to Audio)?
- TTS-HD 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-HD (Text to Audio) cost?
- Input costs start at $33 / 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-HD (Text to Audio)?
- OpenAI: TTS-1-HD (Text to Audio) supports a 10,000 token context window and up to 10,000 output tokens.
- What capabilities does OpenAI: TTS-1-HD (Text to Audio) support?
- OpenAI: TTS-1-HD (Text to Audio) supports Streaming.
- Which providers offer OpenAI: TTS-1-HD (Text to Audio)?
- OpenAI: TTS-1-HD (Text to Audio) is available from Azure.
- How do providers handle data privacy for OpenAI: TTS-1-HD (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.