Resources
Read before you decide
Everything a participant, an HR team or a data protection officer needs to read before deployment, in four places.
Setup
Set up Custodian
Enter the access code from your organisation, create your account, install the browser extension, and decide what you share.
Open the setup guide
Method
How the model works, and how well
The 166 mental states, the three tasks, the results on held-out conversations, and how to read them.
Read how it works
Research
The 3D Mind Model
Thornton and Tamir, "People represent mental states in terms of rationality, social impact, and valence", Cortex, 2020. The published map of mental states that Custodian uses.
Read the paper
Privacy
What is collected, and what you control
What the extension captures, where personal data is removed, who can see what, and how to export or erase your data.
Read the security page