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Opal Systems
Mental state modeling platform based on active inference
Founded 2026 · Concept development since 2025
About
Opal Systems is a research-driven project developing computational models of mental state dynamics.
Founder: Masayoshi Hirose, M.D.
Psychiatrist, Tokyo, Japan
Research focus
Opal develops computational models of mental-state dynamics grounded in active inference.
- interpretable low-dimensional representation of psychological states
- integration of multimodal behavioral, linguistic, and contextual data
- longitudinal modeling of mental-state trajectories
- future applications in mental health and human-state monitoring
Ψ framework
Mental state is represented using five interpretable dimensions:
- Ω Order
- Ε Energy
- Π Precision
- Σ Social Coupling
- Λ Learning
Preprint
The Ψ Model: A Five-Dimensional Active-Inference State Space for Mental-State Dynamics
DOI: 10.5281/zenodo.19158833
Current status
- concept development initiated in 2025
- prototype implementation in progress
- preparation for pilot validation
- research manuscript preparation (active inference)
- business launch as a sole proprietorship in 2026