Vellium & Co

Directory › Images, audio and video generation › OpenAI tts-1-hd

OpenAI tts-1-hd

tts-1-hd: OpenAI TTS 1 HD text to speech, paid per call in USDC. OpenAI list $30 per 1M characters, plus $0.0005 (Base) or $0.0005 (Solana) per call; up to 4096 characters; voices: alloy, ash, coral, echo, fable, onyx, nova, sage, shimmer.

Go to this service →

Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
90 ms
Price
$0.001 per call
Paying buyers, last 30 days
2 (directory's own records)
Paid calls, last 30 days
2
Category
Images, audio and video generation
Address
https://openai.mm.family/x402/v1/models/tts-1-hd/audio/speech

Accuracy

Accuracy scores are published once a seller has enough paid checks against an independent record (at least 7 scored answers over at least 7 days). Until then no score is shown, and a missing score is never a pass.

For agents

This page as JSON: /sellers/9c8ae16a85a9.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].