TTS 1 HD
TTS 1 HD is OpenAI's text to speech model, available from 2 providers. A high-quality text-to-speech model optimized for audio fidelity, producing natural-sounding speech for non-realtime use cases.
openai-tts-1-hd |
| Text to Speech |
| Active |
| OpenAI |
| Text |
| Audio |
| Benchmarks | |
|---|---|
| Elo Rating | 1097#130 |
Capabilities
Input1/5
Text✓
Image·
Audio·
Video·
PDF·
Output1/5
Text·
Image·
Audio✓
Video·
Embedding·
Capabilities0/13
Reasoning·
Adaptive Reasoning·
Function Calling·
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·
Pricing by Provider
| Provider | Standard |
|---|---|
| Audio In $ / 1M | |
 Azure AI Foundry | $0.030 |
OpenAI | $0.030 |
Cost Calculator
Preset:
Versions
| Version | Released | Context | Input / 1M | Output / 1M | Status |
|---|---|---|---|---|---|
| Step TTS 2 | — | — | — | — | Available |
| StyleTTS 2 | — | — | — | — | Available |
| TTS HD 2.5 | — | — | — | — | Available |
| TTS 1 HD | — | — | — | — | Current |
| Inworld TTS 1 Max | — | — | — | — | Available |
| Inworld TTS 1.5 Max | — | — | — | — | Available |
| Inworld TTS 1.5 Mini | — | — | — | — | Available |
| TTS 1 | — | — | — | — | Available |
| Azure Neural | — | — | — | — | Available |
| Inworld TTS 1 | — | — | — | — | Available |
| LMNT | — | — | — | — | Available |