Silently dictate to your computer with your mouth.
Turn silent mouth movements into text and commands across your computer.
View original on XThe next interface between humans and machines.
Every leap in computing was accommodated by a new interface: computers with the keyboard and mouse, the internet with the browser, mobile with the touchscreen. AI is the biggest leap yet, and it is still stuck behind those old interfaces. We are building what comes next.
Silent Speech
Talk to AI without making a sound.
Hundreds of millions of people already use voice to interact with AI every week. It is faster and more natural than typing. But you cannot speak out loud for most of your day, not in an office, a meeting, or a train. So the most natural way to use AI goes quiet exactly where you are.
Silent Speech fixes that. You mouth the words silently, and our model reads how your face moves and turns it into text and commands for any AI. Voice when you can speak. Silent when you cannot. On the Mac and phone you already own.
No audio, only how your face moves. The best voice models get full audio and hit ~3% word error rate. We use pixels alone and are already under 10%, our best is 4%.
Use cases
What becomes possible when speaking is silent.
One input for the moments when voice is too public, too disruptive, or simply cannot be heard.
Control your phone with silent mouth commands.
Call, text, and navigate without touching the screen or speaking out loud.
View original on XChat with AI without using your voice.
Ask, refine, and respond without saying a word out loud.
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Speak on calls in loud environments.
Be heard clearly when the room around you is not.
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Vibe code anywhere, on the go.
Build with AI from a train, a sidewalk, or wherever ideas land.
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FaceTime with AI, privately.
AirPods in. Mouth the words. Hear the response.
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Take notes in meetings without leaving the moment.
Capture a thought without interrupting the room or reaching for the keyboard.
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MAC OR BROWSER · 18+We're building the interface for the next era of human-machine life.
Intelligence is no longer the hard part. Computers can already think. The question that defines the next decade is how we live with that intelligence. We believe the answer is presence: AI that dissolves into your world instead of sitting behind a screen, that is with you, aware of your life, acting on your behalf, reachable as naturally as a thought. The interface, not the model, is what turns intelligence into something that changes how you live.
That interface is what interfaces.inc exists to build. Silent Speech is our first step.
Bring Silent Speech to the moments voice cannot reach.
Building something voice-first? Silent Speech works everywhere your users cannot talk. License our model, API and SDK.
Request accessThe shift
Voice is the future. But what happens when you cannot use it?
Voice is becoming the most natural way to interact with AI. The world is already reorganizing around it, including the places where speaking out loud makes no sense.
Joanna Stern@JoannaSternI want to interview someone who actually wears one of these soundproof beaks to talk to AI in the office.
Charles Maddock@charles_maddockvoice-to-text has gone too far
Sam Altman@samaagreed feels big, i want a new kind of computer
Alex Finn@AlexFinnI don’t think you understand what ChatGPT Voice unlocks... Work can be done ANYWHERE now.
Joanna Stern@JoannaSternVoice is a very big deal.
Aaron Levie@levieVoice AI is absolutely going to be game changing. Typing is fine, but when you just talk to your device and get an instant answer back, it lowers the barrier to asking questions about anything. It’s the closest thing to sci-fi we’ve had in AI. 0 latency is the key though.
Aaron Levie@levieVoice AI will be fairly game changing for interacting with AI Agents to take actions for you on mobile. Texting agents will often be less convenient than simply using a GUI. But talking to agents can be far more efficient than GUIs. This opens up entirely new software use cases.
a16z@a16zVoice is one of the most frequent and information-rich form of human communication — and for the first time, AI is making it programmable at scale.
Hersh Desai@Hersh_DesaiEver since I started working with @natfriedman and @danielgross in 2022, we had a core belief that voice would be a massive unlock for the future of HCI. We were on the lookout for the team that would cross the uncanny valley and build a generational company in voice AI.
cat@catheryn_liExcited to announce that @simpleailab has raised a $14M seed round led by @firstharmonic. For the past year, we’ve been building AI voice agents to transform direct-to-consumer sales. We fundamentally believe that voice AI is the future of all B2C calls.
Atty Eleti@athyuttamrevoice is the future
janvi kalra@janvikalra_go try this out! voice is the future of how we interact with superintelligence, and gpt-live-1 is a step function improvement in voice intelligence, latency, and safety. twas a blast working with the stacked team on this one
signüll@signulllabsolutely fucking love love this. okay sorry openai, you are doing amazingly cool stuff when it comes to interfaces/modalities. i love voice & it is my primary input method for computers now (therefore it deserves a dedicated mechanic to activate).
Jason Averbook@jasonaverbookVoice won’t be the next interface. It will make the interface disappear. AI that understands accents, noise, jargon and fragments removes the need to translate work into fields and forms. Today: transcription. Next: organizational memory.
sourcery@sourceryy“The keyboard and mouse are slowly dying.” Sector Head at Coatue Max Cook: “The keyboard and mouse, you should throw them away. We’re going to natural language interacting with agentic models.”
