Paradromics · Grey Matter

Paradromics is a neurotechnology company in Austin, Texas, founded in 2015, that builds Connexus, a fully implanted brain-computer interface designed around the largest number of single-neuron channels it can read and send out, with restoring speech as its first goal.

Paradromics. Paradromics is a neurotechnology company in Austin, Texas, founded in 2015, that builds Connexus, a fully implanted brain-computer interface designed around the largest number of single-neuron channels it can read and send out, with restoring speech as its first goal.

Its design places one or more modules of 421 microwires each into the cortex, digitises the signals there, and passes them under the skin to a chest unit that transmits wirelessly. The emphasis on channel count and data rate follows from the target: decoding speech means following many fast articulatory movements at once.

Its device is Connexus, which received two breakthrough device designations (2023 for communication, 2024 for computer control).

Its human testing began cautiously. A module was implanted for about ten minutes during an epilepsy operation in May 2025, and the long-term Connect-One study, approved in November 2025, implanted its first participant in June 2026.

Its early work was funded in part by public research grants, among them from DARPA and the NIH, before venture rounds.

Questions: What is distinctive about Paradromics's Connexus implant? Connexus is built for data rate: each coin-sized cortical module drives 421 microwires, each thinner than 40 µm and about 1.5 mm long, into the cortex at once, and the system takes up to four modules. The signals are digitised in the module, carried under the skin to a transceiver in the chest and sent out wirelessly, and preclinical tests reported more than 200 bits per second. Its first target is speech, and the Connect-One study, approved in November 2025, implanted its first participant in June 2026.