TTS 1
TTS 1 is OpenAI's text to speech model, available from 3 providers, starting at $15.00 / 1M input. A text-to-speech model optimized for realtime speech synthesis, converting written text into natural-sounding spoken audio.
| Specifications | |
|---|---|
openai-tts-1 | |
| Text to Speech | |
| Active | |
| OpenAI | |
| Text | |
| Audio | |
| · 3 years ago | |
| Benchmarks | |
|---|---|
| Elo Rating | 1091#160 |
Capabilities
Input1/5
Text✓
Image·
Audio·
Video·
PDF·
Output1/5
Text·
Image·
Audio✓
Video·
Embedding·
Capabilities0/13
Reasoning·
Adaptive Reasoning·
Function Calling·
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·
Pricing by Provider
US Dollar ($)
Per 1M tokens
| Provider | Standard | |
|---|---|---|
| Input $ / 1M | Audio In $ / 1K chars | |
| N/A | $0.015 | |
| N/A | $0.015 | |
| $15.00 | N/A | |
Cost Calculator
US Dollar ($)
Preset:
Versions
| Version | Released | Context | Input / 1M | Output / 1M | Status |
|---|---|---|---|---|---|
| Inworld Realtime TTS 2 | — | — | — | — | Available |
| Step TTS 2 | — | — | — | — | Available |
| StyleTTS 2 | — | — | — | — | Available |
| TTS HD 2.5 | — | — | — | — | Available |
| TTS 1 | — | $15.00 | — | Current | |
| TTS 1 HD | — | $30.00 | — | Available | |
| Inworld Realtime TTS 1.5 Max | — | — | — | — | Available |
| Inworld Realtime TTS 1.5 Mini | — | — | — | — | Available |
| Inworld TTS 1 Max | — | — | — | — | Available |
| Inworld TTS 1.5 Max | — | — | — | — | Available |
| Inworld TTS 1.5 Mini | — | — | — | — | Available |