OpenAI TTS-1

Name: OpenAI TTS-1
Brand: OpenAI
SKU: openai-tts-1
Price: 0.018 USD
Availability: InStock

Pretvarjanje besedila v govorRazpoložljivo

od OpenAIopenai-tts-1

OpenAI's text-to-speech model. Six built-in voices with natural intonation.

Preizkusi Pridobi API ključ Primerjaj

Cena: 0,018 $/1.000 znakov
Vhod → Izhod: Besedilo → Avdio
Razvijalec: OpenAI
Posodobljeno: 23. september 2026

Igrišče

Preizkusi OpenAI TTS-1

Vnos in rezultat

0,018 $/1.000 znakov

Besedilo

Glas(izbirno)

Napredne nastavitve (1)

Oblika(izbirno)

⌘/Ctrl + Enter

Rezultat

Generirani govor se pojavi tukaj.

Ta zagon

0,0001 $ · 0,01 kreditov

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O OpenAI TTS-1

PovzetekOd 23. september 2026

OpenAI TTS-1 je model razvijalca OpenAI iz kategorije Pretvarjanje besedila v govor. Na Railwail stane OpenAI TTS-1 0,018 $ na 1.000 znakov.

Ozadje

O OpenAI

Ustanovljeno 2015 · San Francisco, California, USA

OpenAI was founded in December 2015 by Sam Altman, Elon Musk, Greg Brockman, Ilya Sutskever, Wojciech Zaremba and John Schulman as a non-profit AI research lab. It restructured into the capped-profit OpenAI LP in 2019 and has since received over $13B from Microsoft plus billions more from Thrive Capital, Sequoia, Khosla and SoftBank, at a 2024 valuation north of $157B and a planned 2025 round reportedly at $500B. The audio research line at OpenAI includes Jukebox (2020), Whisper (2022) and the TTS-1 family released in November 2023 alongside the ChatGPT voice feature. TTS-1 powers ChatGPT Voice Mode, the OpenAI API audio endpoint and the Realtime API used in voice agents.

Obiščite OpenAI

Arhitektura

Proprietary Transformer text-to-speech with neural codec

OpenAI TTS-1 is the standard-quality variant of OpenAI's text-to-speech model family, optimised for real-time streaming inside ChatGPT Voice and the Realtime API. It is a Transformer-based model that predicts neural-codec audio tokens conditioned on text and a fixed set of stock voices (alloy, echo, fable, onyx, nova, shimmer) that OpenAI recorded with professional voice talent. There is no voice cloning. The model supports six output formats (MP3, Opus, AAC, FLAC, WAV, PCM) and outputs at 24 kHz. TTS-1 is tuned for low latency and starts streaming audio within a few hundred milliseconds, making it suitable for live conversational agents, while the HD sibling trades latency for fidelity. Text input is capped at 4,096 characters per request. OpenAI has not published a technical paper but the system architecturally resembles published neural-codec TTS such as VALL-E.

Parametri: Undisclosed
Kontekst: 4096 žetonov

Zmožnosti

Real-time streaming TTS with sub-second first-byte latency
Six recorded voices: alloy, echo, fable, onyx, nova, shimmer
Multilingual: 50+ languages including English, German, Spanish, French, Italian, Japanese, Mandarin
Six output formats including streaming PCM for low latency
Powers ChatGPT Voice and the OpenAI Realtime API
Inexpensive at $0.015 per 1,000 characters (vs. $0.03 for HD)
Best for: voice agents, IVR, interactive narration, accessibility

Usposabljanje in licenca

Not disclosed. OpenAI states voices were recorded with paid professional voice actors and the model was trained on a mixture of recorded speech and licensed text-audio pairs.

Licenca: Proprietary commercial API. Generated audio may be used commercially under the OpenAI Usage Policy; the six stock voices cannot be impersonated outside the API.

Preizkusi varnosti: OpenAI's Preparedness team red-teamed Voice Mode; outputs include watermark provenance metadata in the Realtime API where supported. Voice cloning is intentionally not exposed.

Znane omejitve

No custom voice cloning
Limited prosody / emotion control
Quality below TTS-1 HD on slow, emotional narration
Hard cap of 4,096 characters per request
Closed weights, hosted only

Raziskovalni članki

Cene

Cene v ameriških dolarjih. Uporaba se obračuna iz vnaprej plačanih kreditov.

1.000 znakov	0,018 $ na 1.000 znakov

1 kredit = 0,01 $

Kalkulator stroškov

Kalkulator cen

Znaki na zagon

/ zagon

Zagoni

Skupaj

1,80 $

180 kreditov

Na zagon

0,018 $ · 1,8 kreditov

Fiksna cena na zagon, znana pred začetkom.

API

Pokličite OpenAI TTS-1 s svojim Railwail API ključem. V zahtevku uporabite to ID modela:

openai-tts-1Dokumentacija API Pridobite API ključ

curl https://railwail.com/api/v1/audio/speech \
  -H "Authorization: Bearer $RAILWAIL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai-tts-1",
    "input": "Hello from railwail. This sentence was spoken by a text-to-speech model.",
    "voice": "alloy"
  }' \
  --output speech.mp3

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["RAILWAIL_API_KEY"],
    base_url="https://railwail.com/api/v1",
)

with client.audio.speech.with_streaming_response.create(
    model="openai-tts-1",
    input="Hello from railwail. This sentence was spoken by a text-to-speech model.",
    voice="alloy",
) as response:
    response.stream_to_file("speech.mp3")

import fs from "node:fs";
import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.RAILWAIL_API_KEY,
  baseURL: "https://railwail.com/api/v1",
});

const speech = await client.audio.speech.create({
  model: "openai-tts-1",
  input: "Hello from railwail. This sentence was spoken by a text-to-speech model.",
  voice: "alloy"
});

fs.writeFileSync("speech.mp3", Buffer.from(await speech.arrayBuffer()));

Nastavite ključ kot RAILWAIL_API_KEYUstvari API ključ

Specifikacije

ID modela: openai-tts-1
Razvijalec: OpenAI
Kategorija: Pretvarjanje besedila v govor
Vhod: Besedilo
Izhod: Avdio
Oblike izhoda: MP3, OPUS, AAC, FLAC
Obračunavanje: Fiksna cena, znana pred zagonom
Velikost modela: Undisclosed
Licenca: Proprietary commercial API. Generated audio may be used commercially under the OpenAI Usage Policy; the six stock voices cannot be impersonated outside the API.
Kataložni vnos posodobljen: 23. september 2026

Vhodne parametre

Vhodi in nastavitve iz vhodne sheme modela. Primer v razdelku API prikazuje, katere od njih API sprejema.

ParameterTipPrivzetoDovoljene vrednosti

textObvezno
Tip: Besedilo
Privzeto: –
Dovoljene vrednosti: –
voice
Tip: Izbira
Privzeto: –
Dovoljene vrednosti: alloy, echo, fable, onyx, nova ali shimmer
response_format
Tip: Izbira
Privzeto: –
Dovoljene vrednosti: mp3, opus, aac ali flac

Oznake

fast
affordable

Primeri pozivov

Primeri iz kataloga Railwail. Niso bili generirani v živo na tej strani.

Notification Voice
Your order has been confirmed and is being prepared. Estimated delivery time is thirty-five minutes. You'll receive a notification when your driver is on the way.
Tutorial Guide
Step one: open your terminal and navigate to the project directory. Step two: run npm install to download all dependencies. Step three: create a dot env file and add your API keys. Finally, run npm run dev to start the development server.

Primeri uporabe

Kaj se uporablja za

Real-time voice agents
ChatGPT Voice and conversational tutors
IVR and phone bot replies
Accessibility narration for web and mobile
Notification and alert audio

Povezani vodniki

AI Voice & Text-to-Speech Models

Vsi modeli v Pretvarjanje besedila v govor

Pogosta vprašanja

Kaj je OpenAI TTS-1?

OpenAI TTS-1 je model podjetja OpenAI iz kategorije Pretvarjanje besedila v govor. Na Railwailu ga lahko pokličete z ključem API prek Railwailovega API-ja.

Koliko stane OpenAI TTS-1 na Railwailu?

Na Railwail stane OpenAI TTS-1 0,018 $ na 1.000 znakov. Cena je znana pred začetkom izvajanja. Uporaba se plača s predplačanimi krediti; 1 kredit je enak 0,01 $.

Katere nastavitve podpira OpenAI TTS-1?

Glede na shemo vnosa OpenAI TTS-1 pozna te parametre: text, voice (alloy, echo, fable, onyx, nova ali shimmer) in response_format (mp3, opus, aac ali flac).

Kako hiter je OpenAI TTS-1?

Za OpenAI TTS-1 je na Railwailu še premalo izmerjenih zagonov, da bi navedli čas izvajanja. Odvisno je od vnosa, nastavitev in obremenitve pri ponudniku.

Je OpenAI TTS-1 boljši od AudioLDM 2?

To je odvisno od naloge. OpenAI TTS-1 (OpenAI) in AudioLDM 2 (Haohe Liu) sta oba modela iz kategorije Pretvarjanje besedila v govor. Stran za primerjavo prikazuje njune cene in specifikacije drug ob drugem.

Primerjaj OpenAI TTS-1 in AudioLDM 2

Kako uporabljam OpenAI TTS-1 prek API-ja?

Ustvarite ključ Railwailovega API-ja in pošljite zahtevo z ID-jem modela openai-tts-1. Primeri kode za curl, Python in JavaScript so v razdelku API na tej strani.

Primerljivi modeli

Vsi v tej kategoriji

ChatterboxResemble AI
Resemble AI's open Chatterbox TTS. Zero-shot voice cloning from a short audio prompt with an exaggeration control for emotion intensity, plus CFG weight to balance pacing and fidelity.
0,030 $/1.000 znakov
67 % dražje na enoto
Primerjaj OpenAI TTS-1 in Chatterbox
OpenAI TTS-1 HDOpenAI
OpenAI's high-definition TTS model. Better quality for production use cases.
0,036 $/1.000 znakov
100 % dražje na enoto
Primerjaj OpenAI TTS-1 in OpenAI TTS-1 HD
Qwen3 TTSAlibaba (Qwen)
A unified Text-to-Speech demo featuring three powerful modes: Voice, Clone and Design
0,024 $/1.000 znakov
33 % dražje na enoto
Primerjaj OpenAI TTS-1 in Qwen3 TTS

Uporabite OpenAI TTS-1 prek API

En API ključ za vsak model na Railwail. Uporaba se obračuna iz vnaprej plačanih kreditov, 1 kredit = 0,01 $.

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