Piramidal mark: an ink-stamped triangle inside a circle

Brain foundation models

Our most valuable system, still the least understood.

Pretrained on 3 Million hours of EEG

2× GPT-3 pretraining token count, and over 1,000× the largest published EEG foundation model.

20B parameters

12× the largest published EEG foundation model, 8× the largest published time-series model.

Invariant representations

Transfers across montages, hardware, subjects, and conditions with minimal fine-tuning.

Universal Neurosensor Model

1.201.000.800.600.500.400.3010151016101710181019102010211022LossFLOPs, log-scale6M100M1B6B
6M100M1B6B

Bigger models reach lower loss: each size finishes below the one before it.

Pretrained on a corpus of 3 million EEG hours, or 60 million electrode hours
PiramidalBest commercial software
Clinical performance of both models on the same proprietary dataset, labelled by board-certified epileptologists.
Benchmark ABenchmark BBenchmark CPerformancePiramidal+83.6%Piramidal+18.4%Piramidal+3.2%
PiramidalPublished models
Seizure detection on three seizure benchmarks against published models

Two products on one foundation model

Marcy

A clinical-grade EEG agent that monitors, flags and reviews EEG recordings in real-time.

Pending 510(k) submission, not available for sale in the U.S.

Fabryc

Enterprise AI infrastructure for real-time tracking of hundreds of EEGs.

Launching in 2027.

Frontier model scale, clinical grade performance

General intelligence

Performs across devices, subjects and indications.

Inductive transfer learning

Fine tune to any downstream task, with cross-condition (ICU ↔ epilepsy) and cross-modality (scalp EEG → intracranial) generalisation.

Label efficiency

Minimizes the requirement for human labels, decreasing the needed label count by 5,000x within the XL foundation models.

Channel-agnostic

Adapts to any number of channels, montages, hardware devices, and sampling frequencies.

3–10x patient review volume

In a pilot, using our model triples monitoring throughput, scaling the technologist-to-patient ratio from 1:4 to 1:12 (1:64 tba).

Enterprise neurology infrastructure

Designed for real-time AI at 1,000x patient scales, our infrastructure connects multi-site neural data into a single, device-agnostic platform.

Working with leaders in neurology