A "Mind-Reading" Hat Instead of a Brain Implant

Startup Sabi claims it has developed a hat that lets you type using nothing but your thoughts.

It appears to be a regular cap, with approximately 100,000 miniature EEG sensors designed to detect electrical activity in the brain through the scalp and skull. These signals are processed by a "brain foundation model" trained on 100,000 hours of data from around a hundred volunteers.

The system converts thoughts into text at speeds of up to 30 words per minute—roughly on par with typing on a keyboard.

No implants required—according to the company, all you have to do is sit and think.

It Works?

So far, the company hasn't released any studies explaining how the system works or how accurate it is.

The challenge is that EEG signals are extremely weak and noisy. In lab settings, decoding thoughts into text is often only slightly better than random guessing. Last year, Meta showed a system that reached about 80% accuracy, but it relied on a large, capsule-like setup, not something you could wear.

Most existing systems use hundreds of EEG sensors, not tens of thousands. It's possible Sabi has made a breakthrough, but experts are waiting for evidence.

Would you wear something like this?

❤️ — Yes, that sounds convenient
🤔 — I don't want my thoughts read

@hiaimediaen