Speak to Sales Sign up

Pushing the frontier of AI voice

Bringing elite communication to entrepreneurs, content creators,
business owners, and anyone with something worth saying.

Sign up
Melissa’s got serious range!

Explore the frontier.

Tone automatically applies perfect tonality, volume, speed and pacing to every word and phrase.

Choose a voice.

Language

The technology behind Tone

Harnessing the power of goal-oriented communication

* U.S. Patent No. 12,437,153 B1

The continuous modulation of tonality, volume, speed and pacing to keep the listener
hanging on your every word while driving the conversation toward a series of predetermined goals.

Conversational agentsyour customers will actually enjoy talking to.

Step into the uncanny valley of AI voices that sound
more human than human.

Cloning lab

Hyper-realistic clones that enhance the effectiveness of any voice

Still unmistakably you... but better.

Create a clone

PLAY THE CLONE GAME

See if you can tell the difference.

0 correct / 0 played

Carter

The real voice

Reference voice

AVoice A

Same words. One is a clone.

BVoice B

Trust your ears.

Which voice is the clone?

Content · Voice API · Agents

Get early access.

Tell us how you want to use Tone—for creating content, adding voices to your product, or deploying agents for your business.

Early access
What do you want to use Tone for? Select all that apply.

By joining, you agree to our Privacy Policy.

FAQs

Can I use Tone’s conversational agents for my business?

Yes. We work with businesses on tailored conversational-agent deployments. Speak to Sales about your goals and requirements. You can request early access to our API and self-service content tools separately.

What is Tone?

Tone is an AI voice platform built around goal-oriented communication. It brings together text-to-speech, voice cloning, and real-time voice agents, with delivery shaped around what you want a conversation to accomplish.

Who's behind it?

Tone comes from Straightline.AI, co-founded by Jordan Belfort and Shervin Pishevar. It brings together Belfort’s work on tonality and goal-oriented communication with a team building AI voice and conversational systems.

What makes the voices different?

The same words can reassure, persuade, or entertain. Tone shapes tonality, volume, speed, and pacing around the goal—whether that’s creating instant rapport, calming an irate customer, or keeping someone hanging on your every word.

Is it patented?

Yes. Straightline.AI was granted U.S. Patent No. 12,437,153 B1, titled “Persuasive conversational agents for selecting words and tonalities.” It describes a system that selects words and delivery around a conversation’s goals. View the patent.

Can I clone my own voice?

Yes. Tone’s cloning lab is built to turn a short recording into a hyper-realistic voice you can use for new scripts, with expressive range beyond the original sample. You can hear clone examples now; self-service cloning is part of the rollout.

What can I use it for?

Sales and customer service conversations, digital assistants, audiobooks, podcasts, ads, and social content. Choose the voice and delivery to fit what you want the listener to feel, understand, or do.

Which languages are supported?

English and Spanish are the first two languages in the lineup. You can hear English voice samples and Spanish previews from Frank, Ale, and Daphne now. More Spanish voice previews are on the way.

When will the paid site launch for content creators and audiobooks?

The estimated launch date is November 7.

When can I get API access, and what does it cost?

We’re targeting November 15 for API access. We’ll publish release details and pricing here when they’re ready.