Models · Text to speech

Fourier TTS speaks Hindi like a person.

On Voice Arena’s Hindi board, listeners prefer it to Sarvam’s Bulbul V3.

Hear it in each language.

Text120 characters

नमस्ते, मैं आशु बोल रहा हूँ। आपके कर्ज़ की किश्त अगले हफ़्ते जमा होनी है। आप चाहें तो मैं अभी जमा करने का तरीका बता दूँ।

48 kHz · MonoReady when you are

0:00 / 0:07

voice
Ashu
language
Hindi
speech
0:07
characters
120

Fourier TTS, voice ashu, rendered 16 Oct 2026. One request, not edited.

Text149 characters

Hi, मैं नेहा बोल रही हूँ Acme Store से। आपका order dispatch हो गया है और Friday तक deliver हो जाएगा। Address में कोई change करना हो तो अभी बता दीजिए।

48 kHz · MonoReady when you are

0:00 / 0:09

voice
Neha
language
Hinglish
speech
0:09
characters
149

Fourier TTS, voice neha, rendered 16 Oct 2026. One request, not edited.

Text152 characters

Hi, this is Sameer from Acme Logistics. You applied for the delivery partner role in Pune, and I have a few quick questions. Is now a good time to talk?

48 kHz · MonoReady when you are

0:00 / 0:08

voice
Sameer
language
English
speech
0:08
characters
152

Fourier TTS, voice sameer, rendered 16 Oct 2026. One request, not edited.

Text117 characters

નમસ્તે, હું શ્રુતિ, દાંતના ક્લિનિકમાંથી બોલું છું. કાલે સવારે ડૉક્ટર સાથે તમારી મુલાકાત નક્કી છે. તમે સમયસર આવી શકશો?

48 kHz · MonoReady when you are

0:00 / 0:08

voice
Shruti
language
Gujarati
speech
0:08
characters
117

Fourier TTS, voice shruti, rendered 17 Oct 2026. One request, not edited.

Text147 characters

வணக்கம், நான் ஆஷு பேசுகிறேன். உங்கள் கடனுக்கான தவணையை அடுத்த வாரம் கட்ட வேண்டும். நீங்கள் விரும்பினால், எப்படிக் கட்டுவது என்று இப்போதே சொல்கிறேன்.

48 kHz · MonoReady when you are

0:00 / 0:09

voice
Ashu
language
Tamil
speech
0:09
characters
147

Fourier TTS, voice ashu, rendered 17 Oct 2026. One request, not edited.

Text133 characters

నమస్కారం, నేను శ్రుతి, పళ్ళ క్లినిక్ నుండి మాట్లాడుతున్నాను. రేపు ఉదయం డాక్టర్ గారితో మీకు అపాయింట్‌మెంట్ ఉంది. మీరు సమయానికి రాగలరా?

48 kHz · MonoReady when you are

0:00 / 0:08

voice
Shruti
language
Telugu
speech
0:08
characters
133

Fourier TTS, voice shruti, rendered 17 Oct 2026. One request, not edited.

Listen

Hear two voices read the lines a business sends.

Original model output, not edited. The text under each player is what we sent.

  • neha

    0:000:06

    नमस्ते, मैं नेहा बोल रही हूं Acme से। आपका order कल deliver होगा, बस address confirm कर लीजिए।

    Rendered by Fourier TTS · 2026-09-03

  • ashu

    0:000:06

    नमस्ते, मैं आशु बोल रहा हूं। आपकी EMI पांच तारीख को due है — क्या online pay करेंगे?

    Rendered by Fourier TTS · 2026-09-03

Head to head

Listeners prefer Fourier TTS to Sarvam’s Bulbul V3.

Voice Arena plays two voices on the same line, and listeners pick one blind.

  • 993Fourier TTS, #11 of 19, ± 25 from 440 votes
  • 959Sarvam Bulbul V3, #14, ± 9 from 3,882 votes
  • +34Elo ahead of Bulbul V3, all categories
Voice Arena Hindi TTS leaderboard, Bradley–Terry Elo. Higher is better.
DetailFourier TTSSarvam Bulbul V3
Where Fourier TTS is ahead
General conversation 1053+92 ahead 961
Content creation & education 1014+113 ahead 901
Where Bulbul V3 is ahead
Customer support 971 984+13 ahead
Media & entertainment 956 967+11 ahead

Overall: Fourier TTS 993 ± 25 from 440 votes; Bulbul V3 959 ± 9 from 3,882 votes. Bulbul V3 is narrowly ahead in customer support (984 against 971) and media & entertainment (967 against 956). Snapshot of 16 October 2026.

Why Fourier TTS

It is made for Indian conversations, at scale.

Five languages, fast under load, and an endpoint your code already knows.

  1. 01

    Speaks the way India does

    Hindi, English, Gujarati, Tamil and Telugu. In Hinglish it switches from “नमस्ते” to “order confirm” in the same sentence.

  2. 02

    Fast when it is busy

    First audio in 275 ms at p99 with 24 voices speaking at once, and three times the streams per GPU of the usual eight.³

  3. 03

    Drops into your stack

    An OpenAI-compatible speech endpoint. Stream 48 kHz PCM as it renders, or ask for a WAV file.

Pricing

Text to speech is priced by the character.

Start on pay as you go, and move to Business when you need more at once.

Text to speech

Fourier TTS

₹1.80per 1,000 characters²

Pay as you go

Monthly
No commitment
At once
5 concurrent requests

Business

Monthly
₹50,000, credited to your wallet
At once
25 concurrent requests
  • Shared endpoint · No contractual SLA. Top-ups use the same rate.
  • Enterprise: Custom volume pricing, concurrency, dedicated endpoint and SLA.
Read the TTS quickstart
Audio
48 kHz mono PCM16 as a WAV file or raw PCM, or 8 kHz μ-law and A-law for phone lines.
Voices
ashu and sameer, neha and shruti: Hindi voices that code-switch into English, the same on every plan.
Protocol
OpenAI’s POST /v1/audio/speech, with model mira-tts. One sk_live_ key works for TTS and the v2 API.
Languages
Hindi, English, Gujarati, Tamil and Telugu, and Hinglish, on the same endpoint.

Questions

Questions people ask about Fourier TTS.

What is Voice Arena?

An independent leaderboard for voice AI. Listeners hear two voices read the same text and pick the better one without knowing which model made which. The votes become a Bradley–Terry Elo rating for each model.

How does Fourier TTS compare with Sarvam?

On Voice Arena’s Hindi leaderboard, Fourier TTS scores 993 Elo against 959 for Sarvam Bulbul V3 across all categories, and leads by 92 points in general conversation and 113 in content and education. Bulbul V3 is narrowly ahead in customer support and in media and entertainment.

How fast is it?

First audio arrives in 275 ms at the 99th percentile with 24 voices synthesising at once on one GPU. You can stream PCM as it renders, so playback starts before the sentence is finished.

Which languages and voices are available?

Hindi, English, Gujarati, Tamil and Telugu are live, and so is Hinglish. The same four voices speak all of them: ashu, neha, shruti and sameer. The Voice Arena results on this page are for Hindi.

How do I start?

Get an API key, then call the OpenAI-compatible speech endpoint with model mira-tts. The quickstart has working examples.

Still deciding? Ask us.

Fifteen minutes with the team that builds it. Bring your script, or your hardest call.

Book 15 minutes
  1. AI agents from ₹1 a minute: on our volume plan, ₹1,00,000 a month. Pay as you go is ₹5 a minute. Prices exclude GST.

  2. Models are priced on their own, by the character, never by the minute of a call. Monthly commitments are credited to your wallet. Unused credit never expires. All prices exclude GST.

  3. First audio at the 99th percentile with 24 streams synthesising at once on one GPU, from our load test of 14 September 2026.