Fields

Brain-Computer Interfaces

How close are implanted brain interfaces to real-world use?

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Milestone note Sep 14, 2026

One implant decodes speech and gesture at the same time

Reached

Nature Neuroscience — peer-reviewed, two participants — A study published in Nature Neuroscience on 14 Sep 2026 decoded speech and upper-body gesture simultaneously from one implant, driving a personalised avatar in real time. One participant, paralysed by a brainstem stroke, silently attempted five phrases alongside movements — waving, nodding, shaking hands, clapping. A second, with ALS, vocalised ten phrases while imagining ten gestures, holding still apart from facial muscles. The finding underneath is that simultaneous expression is not the sum of its parts: neural activity during combined speech-and-gesture differs from either alone, and decoders trained on simultaneous data outperformed ones trained on the isolated kind. Two participants, peer-reviewed — which is the bar this field has often skipped.

Milestone note Sep 14, 2026

Unscripted real-time speech from a high-channel implant

Reached

Paradromics — Connexus, Connect-One early feasibility study — The first participant implanted with Paradromics' Connexus BCI — a Michigan woman in her sixties with a progressive motor neuron disease — used it for unscripted, real-time speech and text. The distinction from earlier speech neuroprostheses is what she was doing: not copying researcher-selected phrases but choosing her own words, answering open questions, and talking to her grandchildren on a live phone call. Paradromics also reports separating neural signatures for attempted speech, where the person tries to produce sound, from imagined speech, where language is generated internally without any attempt — two different control signals from one implant. This is one participant in an FDA-IDE early feasibility study, and accuracy, vocabulary and durability figures have not been published.

Milestone note Aug 2026

FDA clears an implanted BCI to drive everyday personal devices

Reached

Paradromics — Connexus / Convey, Connect-One early feasibility study — The FDA cleared Paradromics to widen its Connect-One early feasibility study so participants with the Connexus implant can drive a broader range of ordinary personal devices — phones, tablets and computers — through the Convey interface, rather than only the lab-controlled setup the study started with. It is a study-protocol expansion, not a marketing approval: Connexus remains investigational, and the number of implanted participants is still small. The significance is what an implant is being allowed to control, moving from cursor-and-keyboard demonstrations toward the devices patients actually use.

Milestone note Jul 22, 2026

First BCI cleared to restore reading vision (EU)

Reached

Science Corporation — Science began PRIMA's European commercial launch under a CE mark valid across 30 countries — the first BCI cleared anywhere for form-vision restoration. Its subretinal photovoltaic implant plus camera glasses restored functional central vision in geographic-atrophy (dry-AMD) patients; 80% read letters, numbers and words in the NEJM-published trial. First German procedures could come in September.

BCI private funding — $0.49B USD, measured series
Analysis as of May 27, 2026

Is BCI funding ahead of the medicine?

A $9B valuation for Neuralink prices in a future where brain implants are routine — but today's devices help a few dozen people in trials. Our read on the gap between capital and clinical reality. (Our opinion, not investment advice.)

Our read — labelled opinion, not investment advice.
Electrodes per implant — 1,024 electrodes, measured series
Explainer May 13, 2026

Three ways into the brain

BCIs trade off signal quality against surgical risk. Penetrating arrays (Neuralink) read the most; surface arrays (Precision) sit on the brain; vascular devices (Synchron) avoid open-brain surgery entirely. The tracker compares all three.

Milestone note Aug 2024

First high-accuracy real-time speech neuroprosthesis

Reached

UC Davis / BrainGate2 — A BrainGate2 intracortical BCI at UC Davis decoded a man with ALS's attempted speech into on-screen words and synthesized voice in real time at up to ~97-99% accuracy from a large vocabulary (NEJM) — the first speech BCI accurate enough for natural conversation. It has since been used independently at home for thousands of hours, marking the shift from lab demo to daily communication.