Voice AI,
built to run anywhere.

Neuphonic gives you fast, private, human-like text-to-speech

that runs locally, on-prem, or wherever your product needs it.

Neuphonic gives you fast, private, human-like text-to-speech that runs locally, on-prem, or wherever your product needs it.

Try a voice. Sign in to keep creating.

Latency (TTFAB) —

[

TRY IT YOURSELF

]

API Playground

Run On-Device

Deploy On-Prem

Hear it in milliseconds.

Type your text, choose a voice, and generate natural speech across 44 languages. Explore expressive voices and voice cloning before writing a line of code.

Human-like, low-latency speech

Multilingual voices

Instant voice cloning

Try the Playground

Try a voice. Sign in to keep creating.

Latency (TTFAB) —

[

TRY IT YOURSELF

]

API Playground

Run On-Device

Deploy On-Prem

Hear it in milliseconds.

Type your text, choose a voice, and generate natural speech across 44 languages. Explore expressive voices and voice cloning before writing a line of code.

Human-like, low-latency speech

Multilingual voices

Instant voice cloning

Try the Playground

Try a voice. Sign in to keep creating.

Latency (TTFAB) —

[

TRY IT YOURSELF

]

API Playground

Run On-Device

Deploy On-Prem

Hear it in milliseconds.

Type your text, choose a voice, and generate natural speech across 44 languages. Explore expressive voices and voice cloning before writing a line of code.

Human-like, low-latency speech

Multilingual voices

Instant voice cloning

Try the Playground

Built for teams shaping the future

Watch full video

Narration powered by Neuphonic

The voice stack, on your terms.

0.1

Voice Cloning

Cloning a voice from a short audio sample

Clone a voice in seconds.

Create natural, expressive voices from a short sample and use them across your product.

0.1

Voice Cloning

Clone a voice in seconds.

Create natural, expressive voices from a short sample and use them across your product.

0.2

Open Source

Open models. Yours to run.

Build with open speech models you can inspect, adapt, and deploy on your own terms.

0.2

Open Source

Open models. Yours to run.

Build with open speech models you can inspect, adapt, and deploy on your own terms.

0.3

CPU Native

Neuphonic speech running on a CPU with no GPU

No GPU required.

Run real-time speech generation on everyday hardware, from edge devices to private servers.

0.3

CPU Native

No GPU required.

Run real-time speech generation on everyday hardware, from edge devices to private servers.

0.1

Voice Cloning

Clone a voice in seconds.

Create natural, expressive voices from a short sample and use them across your product.

0.2

Open Source

Open models. Yours to run.

Build with open speech models you can inspect, adapt, and deploy on your own terms.

0.3

CPU Native

No GPU required.

Run real-time speech generation on everyday hardware, from edge devices to private servers.

Hear what we’ve been building.

Sound on to hear the difference.

Explore the model

Feature

Specification

#Params (Active)

~60M

CPU Threads

Audio Generation RTF

Voice Cloning

Yes

Languages

English, Spanish, German, French, Japanese, Korean, Chinese

API

NeuTTS-2M

NeuTTS-2M Demo

Explore the model

Feature

Specification

#Params (Active)

~60M

CPU Threads

Audio Generation RTF

Voice Cloning

Yes

Languages

English, Spanish, German, French, Japanese, Korean, Chinese

API

NeuTTS-2M

NeuTTS-2M Demo

Explore the model

Feature

Specification

#Params (Active)

~60M

CPU Threads

Audio Generation RTF

Voice Cloning

Yes

Languages

English, Spanish, German, French, Japanese, Korean, Chinese

API

NeuTTS-2M

NeuTTS-2M Demo

Your transfer is ready to review. The amount is two hundred and fifty pounds.Your driver is eight minutes away and will meet you at the main entrance.You've been working on that for a while. Want to tell me what you're stuck on?You have three unread messages. The first is from Alex and arrived five minutes ago.Almost right. Try thinking about what happens to the denominator first.That size is out of stock here, but I found it at another location nearby.The next available appointment is Tuesday at 10:15. Shall I reserve it?The front door is locked, the lights are off, and the heating is set to eighteen degrees.There's heavy traffic ahead. I found a faster route that saves twelve minutes.You made it back alive. Good. There's something you need to see beyond the northern gate.I found the issue with your order. I can replace it or issue a refund now.Your flight leaves at 9:20. I'd recommend leaving for the airport in about forty minutes.Your room is ready, and I can also arrange a late checkout for tomorrow.I've found a table for two at 7:30 tonight. Would you like me to book it?Hi, I can help you reschedule your appointment or answer any questions you have.

FAQ

Everything you need to know about Neuphonic.

Neuphonic builds voice AI for natural speech and voice interactions, available through three solutions: on-device, running directly on users’ hardware; on-prem, running within your own infrastructure; and cloud via API, providing hosted voice AI without managing model infrastructure.

Yes. On-device and on-prem deployments can run offline once installed, keeping inference on your hardware or within your infrastructure. Our cloud API requires an internet connection.

Our cloud API provides speech in 44 languages with voice cloning. For your own infrastructure, NeuTTS-2M offers voice cloning in English, Spanish, German, French, Japanese, Korean and Chinese. NeuTTS-2E provides English speech with seven emotion modes and four fixed speakers, without voice cloning yet. NeuDecide turns speech into tool calls, while NeuCodec encodes and reconstructs audio.

Try our cloud API at app.neuphonic.com, explore our downloadable models on Hugging Face and code on GitHub, or contact us to discuss on-device and on-prem deployment.

Commercial terms vary by model. NeuDecide and NeuCodec use Apache 2.0, while NeuTTS-2E uses the NeuTTS Open License with commercial-use conditions. Check your chosen model’s licence or contact us for help with licensing and deployment.

FAQ

Everything you need to know about Neuphonic.

Yes. On-device and on-prem deployments can run offline once installed, keeping inference on your hardware or within your infrastructure. Our cloud API requires an internet connection.

Try our cloud API at app.neuphonic.com, explore our downloadable models on Hugging Face and code on GitHub, or contact us to discuss on-device and on-prem deployment.

FAQ

Everything you need to know about Neuphonic.

Yes. On-device and on-prem deployments can run offline once installed, keeping inference on your hardware or within your infrastructure. Our cloud API requires an internet connection.

Try our cloud API at app.neuphonic.com, explore our downloadable models on Hugging Face and code on GitHub, or contact us to discuss on-device and on-prem deployment.