SHORT ANSWER
An AI pet is usually a stack of systems rather than one intelligence. Sensors or user input describe the situation; a state model tracks needs and recent events; a behavior layer chooses an action; animation or motors perform it; and optional language and memory systems explain or personalize what happened.
Perception
A virtual pet may receive taps, text, camera information, or game-world state. A robot may add microphones, touch sensors, joint positions, distance sensors, and cameras. The system first converts these signals into usable events and features.
State and behavior
Needs, moods, cooldowns, relationships, and current tasks create continuity. Rules, planners, learned policies, or a mixture of them select actions. Stable local rules are often safer for movement and care than asking a language model to control everything.
Expression and language
Animation, gaze, sound, and timing make internal state visible. A language model may produce dialogue, but it should receive grounded context and operate behind moderation and capability limits.
Memory and services
Some products store preferences or event summaries locally; others use cloud accounts. Designers must decide what is remembered, how users correct it, and what happens offline or after a service closes.
How to read this topic
AIPets.com separates current products, published evidence, engineering practice, and forward-looking claims. Capabilities vary by product and update. Health, education, and emotional-wellbeing claims need evidence for the specific population and setting—not just a compelling demo.
Sources and further reading
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