By Thomas Şerban von Davier
Publication Date: 2025-12-29 15:35:00
The year 2025 marked a decisive change in artificial intelligence. Systems that were once limited to research labs and prototypes became everyday tools. At the heart of this transition has been the rise of AI agents – AI systems that can use other software tools and act independently.
While researchers have been studying AI for more than 60 years and the term “agent” has long been part of the professional vocabulary, 2025 was the year that the concept became concrete for developers and consumers alike.
AI agents moved from theory to infrastructure, changing the way people interact with large language models, the systems that power chatbots like ChatGPT.
In 2025, the definition of the AI agent shifted from the academic framework of systems that perceive, think and act to the AI company Anthropic’s description of large language models capable of using software tools and taking autonomous actions. While large language models have long excelled at text-based responses, the latest change is their…