Sylvester.ai is changing cat care globally. Since cats instinctively hide discomfort; Sylvester.ai helps caregivers actively monitor their cat at home for subtle changes in health while also increasing revenue for veterinary professionals in between vet visits.
With a single photo, Sylvester.ai analyses facial cues linked to discomfort, giving pet owners reassurance and veterinarians a quicker way to assess patients. Beyond one scan, Sylvester.ai creates a history of results that can be shared with clinics and used to guide treatment decisions.
By combining AI with validated veterinary science, Sylvester.ai makes feline health monitoring available at home and in practice. Sylvester.ai is not just delivering technology. It is changing how the world understands cats, making care more proactive, more collaborative, and more compassionate.
Analyses facial features including eyes, ears, muzzle, whiskers, and head position to identify subtle signs of pain using validated veterinary models, achieving 89% precision for domestic short hair cats.
Builds a history of scan results so caregivers and clinics can see changes and patterns in a cat’s comfort level before and after veterinary visits.
Developed by veterinarians to guide caregivers when a cat receives an unhappy/in discomfort scan, offering next steps and support.
Enables cat owners to send scan results directly to their veterinarian, strengthening communication, trust and decision-making.
Provides veterinary teams with access visual scan results and scan history for feline patients in one simple interface, allowing remote patient monitoring.
Sylvester.ai is trusted by thousands of cat owners and veterinary professionals, with more than 50,000 downloads and over 350,000 images assessed. Current testing shows 89% precision in detecting pain states that require pain medication, giving caregivers and clinics confidence in every scan. By providing consistent results at scale, Sylvester.ai is transforming how feline pain is recognised and addressed.
What sets Sylvester.ai apart is the combination of validated veterinary pain models and the oversight of a PhD animal behaviorist guiding medicalised cat image scoring and continuous model training. This ensures the AI mirrors how veterinarians evaluate pain while delivering fast, repeatable assessments for real-world use.
Sylvester.ai collaborates with universities, shelters, and corporate leaders in animal health to expand data collection and validation. These partnerships strengthen product credibility and ensure the technology continues to evolve with the highest level of scientific rigor. With transparency at the core, Sylvester.ai is building trust by showing how results are generated and by committing to open, responsible innovation in animal health.
By helping to catch signs of pain that might otherwise go unnoticed, Sylvester.ai supports earlier intervention, improves quality of life for cats, and strengthens the bond between pets, caregivers, and veterinary teams.
Sylvester.ai was founded by animal health entrepreneur Susan Groeneveld, whose career has spanned multiple animal health companies and whose personal experience revealed the urgent need for better tools to detect pain in cats. After losing her farm cat Jack, who silently suffered without anyone realising the extent of his discomfort, she set out to change how the world understands feline health.
The belief behind Sylvester.ai is simple: cats deserve better care, and caregivers and veterinarians deserve better ways to provide it. Using advanced artificial intelligence combined with validated veterinary pain models, Sylvester.ai turns a single photo into a clear and consistent assessment of a cat’s comfort.
Sylvester.ai is guided by the mission to bring relief to the millions of cats suffering in silence, while enriching the lives of both cats and their caregivers. The vision is that all cats should have access to ongoing health assessment, whether at home, in the clinic, or through integrated partner platforms. Grounded in values of compassion, transparency, and science, Sylvester.ai is shaping a future where feline pain no longer goes unnoticed.
