Sylvester.ai Review 2026: Features, Pricing, Pros & Cons

Sylvester.ai is a computer vision platform built to improve feline patient care by turning everyday video into meaningful behavioral insight. Instead of acting as a diagnostic tool or AI scribe, Sylvester.ai uses facial analysis and machine learning to assess patterns that suggest changes in comfort, stress, and pain, always as a support to clinical judgment rather than a replacement. At the core of Sylvester.ai is a cat behavior assessment API that can be integrated into the tools you already use. Veterinary teams can deploy it in multiple ways, including in clinic use on tablets or workstations, integration into existing practice platforms, or through a companion app used by cat owners at home. This flexibility allows clinics to extend feline monitoring across the full care journey, from pre visit engagement to in hospital assessment and remote follow up. Practices use Sylvester.ai in three main workflows: * Pet to vet, identifying behavioral changes that can inform reminders, reactivation of lapsed feline patients, and more targeted outreach. * In clinic assessment, for example after surgery, during boarding, or to monitor general comfort and stress levels in the hospital. * Remote patient monitoring once the cat is back home, providing additional context between visits and supporting more proactive follow up care. By delivering scientifically grounded insights based on expert scored images and established pain scales, Sylvester.ai gives clinicians another data point for pain and comfort discussions with clients. It helps teams explain what they are seeing, have clearer conversations about treatment options, and encourage timely rechecks when needed. Designed to plug into existing workflows rather than create new ones, Sylvester.ai helps veterinary hospitals reduce manual observation burden, add structure to feline behavior assessment, and strengthen the connection between cat owners and their primary veterinary clinic.