tts-hd
Version: 001
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Key capabilities
About this model
TTS-HD is a model that converts text to natural sounding speech.Key model capabilities
- TTS: optimized for speed.
- TTS-HD: optimized for quality.
Use cases
See Responsible AI for additional considerations for responsible use.Key use cases
TTS is optimized for realtime or interactive scenarios. For offline scenarios, TTS-HD provides higher quality.Out of scope use cases
The provider has not supplied this information.Pricing
Pricing is based on a number of factors, including deployment type and tokens used. See pricing details here.Technical specs
The provider has not supplied this information.Training cut-off date
The provider has not supplied this information.Training time
The provider has not supplied this information.Input formats
Max request data size: 4,096 chars can be converted from text to speech per API request.Output formats
The provider has not supplied this information.Supported languages
The provider has not supplied this information.Sample JSON response
The provider has not supplied this information.Model architecture
The provider has not supplied this information.Long context
The provider has not supplied this information.Optimizing model performance
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The provider has not supplied this information.Training disclosure
Training, testing and validation
The provider has not supplied this information.Distribution
Distribution channels
The provider has not supplied this information.More information
The provider has not supplied this information.Responsible AI considerations
Safety techniques
The provider has not supplied this information.Safety evaluations
The provider has not supplied this information.Known limitations
The provider has not supplied this information.Acceptable use
Acceptable use policy
The provider has not supplied this information.Quality and performance evaluations
Source: OpenAI The provider has not supplied this information.Benchmarking methodology
Source: OpenAI The provider has not supplied this information.Public data summary
Source: OpenAI The provider has not supplied this information.Model Specifications
Last UpdatedOctober 2025
ProviderOpenAI