OpenAI

Use the OpenAI TTS API as your provider.

Setup

Environment variables (recommended for deployment):

API_BASE=https://api.openai.com/v1
API_KEY=sk-...
NEXT_PUBLIC_DEFAULT_TTS_PROVIDER=openai

Or in-app via Settings → TTS Provider:

1. Set provider to OpenAI.
2. The base URL is pre-filled, no changes needed.
3. Enter your API_KEY.
4. Choose a model and voice.

Settings modal values override env vars. See TTS Providers for how the two layers interact.

Notes

• Models: tts-1, tts-1-hd, gpt-4o-mini-tts
• TTS requests are sent from the server, not the browser. The API key is never exposed to clients.

References

• OpenAI TTS pricing
• TTS Providers
• TTS Environment Variables