Written by: Vedrana Pribičević, ZŠEM
The intensification of the debate on artificial intelligence and its economic effects in the Croatian public space requires a more precise delineation of terms. In the dominant discourse, large language models are often treated as a synonym for artificial intelligence as a whole, and such reduction obscures the key difference between statistical sequential models and systems with a persistent internal representation of the world.
In technical terms, LLMs (large language models) are models for predicting the next token conditioned by context. They do not possess explicit causal structures and stable models of physical and social reality. In this sense, their ‘intelligence’ is a function of statistical regularity, not understanding, therefore further increasing the size of the model yields diminishing returns in terms of persistence, reliability, and long-term planning.
World Models
It is precisely this limit that Yann LeCun warns about, who, after many years of work at Meta, has redirected his operational focus to the development of architectures based on world models, believing that further scaling of language models does not solve the fundamental problem of understanding. His thesis is that without an internal representation of the laws of space, time, and causality, there is no transition to systems capable of stable predictive planning and autonomous action in complex environments.
The world model is therefore a mechanism that allows for the simulation of outcomes before action and the optimization of behavior in the real world. Another doyenne of AI, Fei-Fei Li, shares the belief in the need for such a shift by working on embodied systems of artificial intelligence and visual-spatial perception as prerequisites for modeling the dynamics of the environment.
Both have founded companies: Li raised one billion dollars in the latest funding round, and LeCun’s company is expected to have an initial valuation of three billion dollars. The half a million citations that LeCun and Li have together deserve the trust of investors.
The economic effects of artificial intelligence largely depend on how quickly world models will develop. LLMs primarily act as augmentation technology in which information is intensively used, increasing the efficiency of administrative and cognitive tasks, reducing transaction costs, and accelerating data processing, thus their macroeconomic effect is incremental and concentrated in services.
