Subvocal

Subvocal is a wearable silent-speech input system from The Subvocal Company Inc. Its glasses are being developed to convert deliberately mouthed words into text, allowing users to write and interact with AI tools without speaking aloud.

How You Use It

The intended workflow is to wear the device, complete a short personal calibration, and silently articulate the words you want to enter. Subvocal decodes that intentional input into text. It requires dedicated sensing hardware and does not use a webcam or camera-based lip reading. It does not read arbitrary thoughts or depend on hearing your voice.

The company positions Subvocal as an input method for existing apps rather than a separate destination app. Intended uses include messages, email, documents and conversations with AI assistants. Its website demonstrates giving instructions to Claude Code and names Cursor, ChatGPT, Claude and Slack as intended destinations. These examples describe the intended workflow rather than a published compatibility guarantee.

Developer Uses

For developers, Subvocal is intended to provide a way to dictate prompts, explain requirements and direct coding agents while working near other people. Users would silently articulate instructions instead of typing or speaking them aloud. Subvocal provides the text input; the coding agent performs the development work.

Performance and Limitations

The company reports prototypes that decode open-ended silent speech in real time and claims speeds above 200 words per minute. These are company-reported prototype results rather than a guaranteed input speed. Recognition can make mistakes, and the company describes using context and easy corrections to address them. Initial setup is expected to include personal calibration.

Availability and Compatibility

Subvocal glasses are available to reserve while the product remains in development. First shipments are estimated for Q1 2027, without a guaranteed delivery date. Final specifications, appearance, features and software compatibility may change before production.

Supported operating systems, device pairing, setup software and processing location have not been publicly confirmed. Dedicated hardware is required; this is not a standalone phone app.