How we help digital health teams



From early stage AI strategy through to hands on consultancy, evaluation, and monitoring, we support the full lifecycle of human facing AI systems.


AI strategy
Shape your AI approach before you build

We help digital health teams define where AI can add real value and where it cannot. From stakeholder alignment and use case identification to AI roadmaps, safety frameworks, and governance design.

  • AI readiness assessment and roadmapping
  • Use case identification and prioritisation
  • Behavioural science and clinical integration
  • Safety, governance, and regulatory frameworks
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Consultancy and delivery
We don't just advise. We augment your team and build alongside you.

Hands-on consultancy, team augmentation, and end-to-end delivery across the full patient and user journey. From behavioural diagnosis and product development through to data analysis, research, and peer-reviewed publication.

  • Behavioural diagnosis, segmentation, and onboarding design
  • AI product development and engineering
  • Data analysis and research demonstrating product effectiveness
  • Conference abstracts, white papers, and scientific publications
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AI evaluation platform
PromptSafe External site

PromptSafe is the evaluation platform we use when building conversational AI for clients — and it's also available as a standalone service. It tests AI systems against realistic synthetic personas and expert-informed behavioural and clinical criteria, including adversarial personas designed specifically to find weaknesses in your agent.

Personas are customised to closely reflect your actual end users or patients. We build custom evaluators and evaluation criteria across a wide range of clinical and behavioural domains. Once weaknesses are identified, PromptSafe provides direct, practical feedback on how to improve your agent.

  • Customised personas aligned to your end users, patients, or clinical population
  • Adversarial personas designed to probe and expose agent weaknesses
  • Custom evaluators built across clinical and behavioural domains and metrics
  • Practical improvement recommendations — not just signals, but actionable feedback
  • Available as a standalone service via API — we never see your system prompt or agent configuration
  • No code required — connect your agent or prompt and start testing in minutes
Visit PromptSafe ↗
AI monitoring platform
OVRSI Coming soon

OVRSI is an independent monitoring layer that continuously reviews real-world conversations between patients and AI systems — monitoring both what users say and how the AI responds. It surfaces safety signals, behavioural patterns, and model drift over time, producing structured, explainable evidence for human review, governance, and regulatory readiness.

Unlike generic observability tools, OVRSI uses explicit logic grounded in knowledge graphs — generating transparent, inspectable signals without access to system prompts or proprietary architectures.

  • Monitors AI responses and patient/user signals in real time
  • Surfaces safety risks, drift, and behavioural pattern changes
  • Explainable, inspectable evidence — built for regulated environments
  • Supports bespoke oversight aligned to your SOPs and clinical programmes
  • Seeking design partners and investors
Visit OVRSI and book a demo ↗

Why choose Sacher AI?


We offer specialised expertise

Specialised expertise



We bring focused, cross-disciplinary expertise spanning behavioural science, AI development, and safety-critical design. This allows us to complement your existing team and address complex behavioural and risk challenges without slowing delivery.

We offer flexible resource allocation

Flexible, scalable support


Our engagement model is designed to scale with your needs. We provide the right level of support at the right time, helping teams move efficiently through discovery, design, and deployment without the overhead of new hires or long-term commitments.

We offer perspective and efficiency

Independent insight, practical impact

We offer an independent perspective and practical best practices to streamline your processes and support informed decision making.



Our insights are designed to improve efficiency, minimise wasted effort, and contribute to evidence-informed strategies across your AI initiatives.

Ready to get started?

Book a free 30-minute discovery call to explore how we can support your team.