Model detail
tts-hd
Model specs
- Context length
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- Max output
- –
- I/O modalities
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- Released
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API endpoints
One MixRoute gateway, OpenAI-compatible
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OpenAI-compatible
/v1/chat/completionsPOST
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Pricing
Flat rate, unit: /1M Tokens
Input
$75.0000 /1M Tokens
Completion
$75.0000 /1M Tokens
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Selection summary
Quickly judge whether it fits your workload
What is this model good for?
High-definition text-to-speech with superior quality
Use tts-hd for high-quality text-to-speech output. It is OpenAI's HD voice model, offering superior audio quality compared to the standard tts model.
What should you check before using it?
Compare quality and cost vs tts and GPT-4o Mini TTS
tts-hd offers the highest quality among OpenAI's TTS models but may cost more. Test your specific text to determine if the quality improvement justifies the cost.
Why use it through MixRoute?
Use the compatible endpoint with stable model ID
Use the confirmed compatible endpoint with model ID tts-hd through MixRoute.
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Token cost estimator
Live estimate from this page's pricing, not an actual bill
This model has no cache-read price; caching is not counted
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FAQ
tts-hd is OpenAI’s high-definition text-to-speech model, offering superior audio quality compared to the standard tts model. It is designed for applications requiring the best voice quality.
One endpoint, a testable decision
Test this model and alternate routes with the same request format
Start from a real workload, then let quality, total cost, and failure conditions decide whether to send production traffic.