Tether, the company most people associate with the world’s largest stablecoin, just released an open-source brain-to-text engine that runs entirely on your device. No cloud. No data leaving your hardware. No third party reading your neural signals.
Tether has been quietly building out its AI division, Tether EVO, and the latest release slots into its broader QVAC framework, a privacy-first toolkit designed to keep sensitive data exactly where it belongs: with the user.
What Tether actually built
The project is called BrainWhisperer, and it does what the name suggests. It decodes brain signals into text, running entirely on local hardware through the QuantumVerse Automatic Computer (QVAC) ecosystem.
QVAC launched on April 9, 2026, as a cross-platform, fully open-source software development kit for on-device AI inference and application development.
