Building the first Foundation Model for mental health

General-purpose AI performs well where clinical decisions follow codified pathways. Psychiatry doesn't work that way: treatment is iterative, symptoms are subjective, and critical signals — how a patient speaks, how they sleep, how they evolve over weeks — are invisible to models trained on text alone.

Our foundation model is trained directly on psychiatric data: voice, language, clinical context, and behavioural signals, across diagnoses and languages.

HDS certifiedISO 27001 certifiedGDPR compliant
The largest mental health dataset built for AI
Our models are trained on a proprietary dataset built with our clinical partners over multiple years: voice samples from patients with severe psychiatric conditions and controls, across multiple languages and indications.
Every sample is paired with clinical assessments validated by experts, which enables our model to learn patterns that general-purpose AI cannot capture.

8

clinical trials

4

data partnerships

20K

speakers

1K

patients

Explore our research

Discover our ongoing clinical trials and scientific publications.

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CallyoVoice

A medical device for tracking psychiatric symptoms

CallyoVoice is a medical device for psychiatric symptom assessment, powered by our audio-language foundation model — the first dedicated to mental health. It evaluates depression, anxiety, psychosis, mania, insomnia, fatigue, cognitive decline, and more, enabling clinicians to track symptom evolution objectively with minimal burden for the patient.

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A leader
Outperforming state-of-the-art audio-language models on psychiatric assessments.
Our foundation model achieves an F1 score of 0.81 on psychiatric symptom assessment from voice and activity data — more than twice the performance of leading audio-language models on the same benchmarks.
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Our Scientific Committee.

Our research is guided by a committee of leading scientists and clinicians in mental health, neuroscience, and AI.

Thomas Clozel

CEO of Owkin, co-founder of Bioptimus

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Raymond Sanchez

Co-founder and former CMO of Cerevel

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Pr Paola Pedrelli

Harvard Medical School / Massachusetts General Hospital

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Pr Michael Browning

University of Oxford

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Pr Frank Bellivier

Fernand Widal Hospital, AP-HP

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Pr Raphaël Gaillard

GHU Paris Psychiatrie et Neurosciences

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Emmanuel Dupoux

Meta AI Research, École Normale Supérieure

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