PNPL Competition 2026

Current

Word Classification from MEG Brain Recordings

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Competition opening July 2026

We're happy to announce the PNPL Competition is returning this year. Keep in mind this page is still work-in-progress as we finalise all details.

The 2026 PNPL Competition builds on the success of our inaugural year with a more ambitious task and a significantly expanded dataset. This year, participants will tackle Word Classification — predicting which word a subject is hearing from MEG brain recordings.

What's New

New Task

Work Classification — decode the specific word heard from MEG data

New Dataset

Introducing the new LibriBrain100 dataset, now with over 100 hours of MEG data

Go broad & deep

Maximise within-subject performance or tackle cross-subject generalisation

Four Months

The competition will run between July 1st and September 30th, 2026.

The Dataset: LibriBrain100

LibriBrain100 is a major expansion of the original LibriBrain dataset, bringing the total to over 100 hours of MEG data. It combines ~80 hours from the original LibriBrain subject with ~40 minutes of recordings from each of 32 new subjects, all listening to naturalistic spoken English from the Sherlock Holmes canon.

This multi-subject dataset opens the door to cross-subject generalisation — a critical challenge for practical brain-computer interfaces. How much data does it take to reach useful performance on a new subject?

Scatter plot comparing LibriBrain100 with other MEG datasets on number of subjects and maximum hours per subject. LibriBrain100 sits in the upper-right quadrant — many subjects and many hours per subject — while datasets like MEG-MASC, MOUS, and Le Petit Prince have more subjects but far fewer hours each.
LibriBrain100 compared with other public MEG datasets. The original LibriBrain went deep on a single subject; LibriBrain100 keeps that depth while adding breadth across 33 subjects.
Task Details →View 2025 Results