OpenAI TTS-1 HD API

$0.504/min on Varosity credits ($0.480/min with your own key).

Try OpenAI TTS-1 HD Get an API key

no openai account needed · no subscription · failed renders never billed

Best for

highest OpenAI voice quality
6 voices
natural prosody

Trade-offs

2× cost of TTS-1

Call it from your code

One Varosity key works for every model.

curl -X POST https://varosity.ai/api/v1/tts \
  -H "Authorization: Bearer $VAROSITY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "text": "Welcome to the launch. Here's what's new this week.",
    "voiceModel": "openai-tts-1-hd"
  }'

Or ask your agent

Connect Claude, Cursor, or any MCP client to https://varosity.ai/api/mcp with your key, then say:

"Use Varosity with openai-tts-1-hd to read this script aloud: …"

Agent setup guide

Alternatives to OpenAI TTS-1 HD