A model is a computational core—an algorithm with trained parameters that converts inputs into outputs. It performs a specific task: a classification model recognizes images, a language model generates text, and a predictive model estimates future values.
A system, on the other hand, represents the entire tool that the user interacts with, i.e., the complete application or platform that uses the model and makes it available to users; it includes the user interface, additional features, security measures, etc.
A system can be built on one or more models, and conversely, multiple systems can run on a single model.
| AI TOOL | MODEL | SYSTEM |
|---|---|---|
| ChatGPT | GPT-4o, GPT-4, GPT-3.5 | ChatGPT by OpenAI |
| Copilot | GPT-4, GPT-4 Turbo | Copilot by Microsoft |
| Gemini | Gemini 1.5 Pro, Gemini 1.5 Flash | Gemini by Google |
| Claude | Opus 4 and Sonnet 4 | Claude by Anthropic |
Imagine submitting a scientific article for review—and on the other side, a reviewer opens an artificial intelligence tool. According to a 2025 survey by the publisher Frontiers, more than half of reviewers today use AI when evaluating articles.
Artificial intelligence has become an integral part of studying and teaching. To help you use the tools effectively, ethically, and in accordance with faculty guidelines, we offer methodological support and consultations in the field of AI.
