Does TTS-1 support zero data retention?

Not by default. See the per-route data-handling section for each route's logging stance and retention window.

Where is TTS-1 hosted?

TTS-1 runs on US hosting routes through the Opper gateway.

Is TTS-1 trained on prompts and outputs?

No. Every hosting route for TTS-1 is configured so customer prompts and outputs are not used to train models by default.

Is a GDPR DPA available for TTS-1?

Yes. A GDPR Data Processing Agreement is available on at least one route serving TTS-1. Contact hello@opper.ai to receive it.

TTS-1

by OpenAI

OpenAI's text-to-speech model optimized for real-time use, generating natural speech with low latency across nine voices.

Open in playground Try in chat Compare

Key info

Input

Output

Features

Pricing

$15.00 / 1M chars

Billing

Per 1M characters

US residency available
No training by default
GDPR DPA available

Pricing

Usage-based pricing, billed by characters, not by token.

Variant	Price
Standard	$15.00 / 1M chars

Available routes

TTS-1 runs on 1 route through the Opper gateway. Compare residency, ZDR, and training posture at a glance — full data-handling detail per route below.

Provider	Region	Zero data retention	Training	Price
OpenAI	US	Not by default	No	$15.00 / 1M chars

Uptime and availability

TTS-1 runs on a single route through the Opper gateway today, so its availability is that provider's availability.

96.06%route uptime, last 30 days

Single route, no failover target within this model.

Name a second model in the same request and the gateway tries it on retriable errors, so a busy hour never has to reach your users. Set up a fallback chain.

Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. See uptime for every provider Opper monitors.

Data handling per route

Each route hosting TTS-1 has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

OpenAI — United States🇺🇸

Zero data retention is not on by default — abuse monitoring, 30-day retention. No training on customer data. US; SCCs; DPA available.

Zero data retention: Not by default — abuse monitoring, 30-day retention. Derived from the logging and moderation facts.
Training: No training on customer data.
Logging: Abuse monitoring (30-day retention)
Moderation: Not established
Caching: Not established
Subprocessor access: Not established
GDPR DPA: DPA available
Transfer mechanism: SCCs

Get started

Call TTS-1 through the Opper gateway with one API key. Let your coding agent set it up, or call it directly — Opper is drop-in compatible with the OpenAI, Anthropic, and Google AI SDKs.

Set it up with your agent

Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.

Or call it directly

1import OpenAI from "openai";
2
3const client = new OpenAI({
4  apiKey: process.env.OPPER_API_KEY,
5  baseURL: "https://api.opper.ai/v3/compat",
6});
7
8const completion = await client.chat.completions.create({
9  model: "openai/tts-1",
10  messages: [{ role: "user", content: "Hello" }],
11});
12console.log(completion.choices[0].message.content);