Text to speech · Português
Pāṇini TTS speaks Portuguese for customers in Brazil and Portugal, at the same price and with the same voice you use in every other language.
Aqui é da Sonex: a fatura do seu cartão, no valor de quatrocentos e oitenta reais, vence no dia dez de novembro. Você pode pagar pelo app ou pelo código Pix que acabamos de enviar por SMS.
Voices
Free to play in your browser without an account, up to 220 characters at a time. To save the audio as a file, sign up free for 10,000 characters and one voice clone, no card required: the dashboard saves WAV and the API returns MP3.
Making a video? See AI voice-over for YouTube and Reels. The audio is yours to use on monetised channels.
Last verified 24 October 2026
There is no native Portuguese platform voice yet, so the playground uses Liz, a voice recorded in another language: the Portuguese text is read correctly, in that voice's accent. For a local accent, clone a native Portuguese speaker from a 10-second recording and use that voice for every clip.
Sign up free, then send Portuguese text to the API with "output_format": "mp3" and save the file, or generate clips in the dashboard and download them. Scripts longer than the playground's 220 characters work the same way.
About Portuguese
Brazilian and European Portuguese share a spelling but sound far apart. Lisbon swallows unstressed vowels ("telefone" can sound almost like "tlfón"), while São Paulo keeps them open and turns "di" and "ti" into "dji" and "tchi". Grammar differs too: a Brazilian says "você" and "estou fazendo", a Portuguese speaker often says "tu" or "o senhor" and "estou a fazer". Write the variety your customers speak, and Pāṇini reads it as written.
Brazilian customer contact runs on boleto and Pix reminders, card collections, delivery updates and WhatsApp-first support. Customers there expect a warm, informal tone, often with English loanwords such as "delivery", "app" or "login". Pāṇini reads that mixed text in one voice, and the same voice can speak Spanish for neighbouring markets in Latin America.
Use cases
Fintechs, retailers and utilities remind customers of boleto and Pix due dates in friendly Brazilian Portuguese.
Marketplaces and couriers confirm delivery windows across Brazil without a human agent on every call.
Brands serving Portugal, Angola and Mozambique keep one voice across markets, alongside English or French.
Commercial use
The full wording is in our terms of service.
YouTube
Yes, AI voices are allowed. What YouTube limits is mass-produced, repetitive content: videos made from a template with little original work. Its July 2025 update renamed that rule from “repetitious” to “inauthentic” content (YouTube’s monetisation policies).
Write your own script, add your own research or editing, and keep one consistent voice for the channel. Where a realistic AI voice could mislead viewers, use YouTube’s altered or synthetic content label. The monetisation decision is always YouTube’s.
Voice cloning
Clone your voice from a 10-second recording. Your clone speaks Portuguese, and every other language Pāṇini supports, in your own voice. The language comes from the text you type, so a clone recorded in English or Hindi can read a Portuguese script.
Your accent comes with it: a clone sounds like you speaking Portuguese, not like a different native speaker. Every free account includes one voice clone. Clone only your own voice, or a voice whose owner has agreed.
API
One request returns Portuguese audio as MP3. The language is detected from the text, so no language setting is needed. Pāṇini TTS starts streaming audio in under 200 ms (time to first byte).
1curl https://api.sonexlabs.com/v1/speech \2 --header 'Authorization: Bearer YOUR_API_KEY' \3 --header 'Content-Type: application/json' \4 --data '{"text": "Aqui é da Sonex: a fatura do seu cartão, no valor de quatrocentos e oitenta reais, vence no dia dez de novembro. Você pode pagar pelo app ou pelo código Pix que acabamos de enviar por SMS.", "output_format": "mp3"}' \5 --output portuguese.mp3FAQ
Yes. The playground on this page reads up to 220 characters of Portuguese at a time with no account. Sign up free for 10,000 characters and one voice clone, no card; after that it costs $0.03125 per 1,000 characters.
Yes, after free sign-up. The playground on this page plays audio in your browser only, up to 220 characters at a time, so you can check the voice first. Sign up free (10,000 characters and one voice clone, no card): the dashboard saves each clip as a WAV file with Download audio, and the API returns MP3 when you set "output_format": "mp3".
It reads either; write the text in the variety you want. For a specific accent, clone a speaker from Brazil or Portugal from a 10-second sample.
Liz reads these samples; she is not a native Portuguese voice. Any Sonex Labs voice can speak Portuguese, and you can clone a native speaker's voice from 10 seconds.
Yes. Loanwords such as delivery, app and login are read in the same voice.
$0.03125 per 1,000 characters, the same as every language. The first 10,000 characters and one voice clone are free, with no card.
Yes. Audio you generate, on the free tier or with paid credits, can be used on monetised YouTube channels, Shorts, Reels and in ads, with no attribution. YouTube limits mass-produced, repetitive videos, not AI voices, so write your own script and keep your edits original. The monetisation decision is YouTube's.
The audio you generate is yours to use, including commercially, with no attribution and no royalties to Sonex Labs. You are responsible for the script itself: if you read someone else's text, you need their permission.
Yes. A Sonex voice clone is not tied to the language it was recorded in. Type a Portuguese script and your clone reads it in your own voice, with Portuguese pronunciation. Your natural accent carries over, so it sounds like you speaking Portuguese.
More languages
See text to speech in every language, the full list of 250+ languages, pricing, the Pāṇini TTS API, or transcribe Portuguese audio with Valmiki speech to text.
10,000 free text-to-speech characters and one free voice clone that speaks every language, no card required. Every language is billed at the same rate.