Large language models may excel at giving directions through New York City's streets, but new research reveals they do so without actually understanding how the city fits together. The models crash spectacularly when faced with simple detours, exposing that their seeming expertise is just sophisticated pattern matching.
The findings strike at a central question in artificial intelligence: whether AI systems are developing true "world models"—coherent understandings of how things work and relate to each other—or just getting very good at mimicking correct behavior without genuine comprehension.
“What we find in our work is that generative models can produce impressive outputs without recovering the underlying world model,” says Ashesh Rambachan, an Assistant Professor of Economics at MIT and one of the paper’s authors. “When we see these impressive outputs, we naturally believe that these generative models are learning some underlying truth about the world—after all, it is difficult for me to imagine a person that can navigate from point A to point B in NYC without also believing that person understands the map of NYC.”
The fundamental challenge revealed in the paper by IBM Vice President and Senior Partner, Global Head of Tech, Data, & AI Strategy, Brent Smolinksi, is that a large language model “can't do deductive reasoning. It's not set up to do that. It's set up to do pattern recognition and to react to those patterns."
Rambachan's team developed two new ways to measure how well AI models understand their environment: sequence distinction and sequence compression. They tested these metrics using deterministic finite automata (DFAs) in two scenarios: navigating New York City and playing Othello.
What they found was surprising. Models that learned from random moves developed a better understanding than those trained in strategic gameplay. The reason? Random training exposed the models to many more possible situations and transitions, giving them a more complete picture of their environment than models that only saw strategic, "optimal" moves.
When researchers stress-tested these AI systems, they uncovered a troubling gap between performance and understanding. The systems looked impressive on the surface - they could generate valid moves and directions with high accuracy. But beneath this facade, almost every model failed basic tests of world modeling.
A telling example came from the NYC navigation tests. The navigation models fell apart when researchers made simple changes to the city map by adding detours. This revealed that the models didn't actually understand city geography or routing principles at all—they were just making superficially correct suggestions without any real comprehension.
This points to a crucial weakness in current AI systems: they can be very good at making predictions while needing a more genuine understanding of what they're working with. According to Smolinski, large language models may seem intelligent, but they're just very good at pattern matching rather than actual (deductive) reasoning. He said that when these AI systems appear to solve logical problems, they just recognize patterns they've encountered before, not thinking things through step by step.
Smolinksi argues that the key distinction is that we need different types of AI techniques working together—for example, you may have one for recognizing patterns, another for representing knowledge, and a third for logical reasoning in order to solve a problem.
The finding that today's most sophisticated AI systems can ace tests without true understanding cuts to the heart of a fierce debate now consuming Silicon Valley: whether artificial general intelligence is just around the corner or still fundamentally out of reach.
The race to achieve artificial general intelligence (AGI) has become one of the most contentious debates in tech, highlighting a deepening rift between optimists and skeptics. In corporate boardrooms and research labs across Silicon Valley, conversations increasingly center on not just if but when machines will match human cognitive capabilities.
The timeline for AGI development has split the AI community into two distinct camps. On one side stand the techno-optimists, who see AGI as an imminent breakthrough that could reshape civilization within our lifetime. On the other are the pragmatists, who caution that we may be decades away from machines that truly think like humans.
This fundamental disagreement about AGI timelines isn't merely academic - it shapes research priorities, investment decisions, and policy discussions around AI safety and regulation. As billions of dollars pour into AGI research and development, the stakes of this debate continue to rise.
While some prominent tech leaders like Sam Altman of OpenAI have suggested artificial general intelligence—AI systems that can match or exceed human-level cognition across virtually all tasks—could arrive within years, IBM's Smolinski offers a more skeptical view. He argues that current AI systems, particularly large language models, are fundamentally limited to pattern matching rather than actual reasoning.
Rather than being on the verge of human-like intelligence, Smolinski suggests "we may not even be in the right zip code" when it comes to the architecture needed for true AGI. As he puts it directly: "I would distinguish between AI that's helpful in solving specific problems versus general AI... I think having a system that operates like a human, that has the same kind of thought processes as a human, or problem-solving... we are many years away from that. We may never even get there."
Smolinski breaks down AI capabilities into clear categories that each serve different purposes. On the one hand, you have modern AI-like large language models excellent at pattern recognition, such as seeing similarities and trends in data. Conversely, you have traditional rule-based systems that can follow logical steps. The real challenge, he explains, isn't improving either type but figuring out how to combine them effectively.
Smolinski suggests that neuro-symbolic AI might offer one path forward. This branch of AI attempts to combine neural networks with symbolic reasoning, though its ultimate potential remains to be seen. These hybrid systems can learn from raw data and apply logical rules. This dual nature helps machines tackle complex challenges, from parsing natural language to solving problems in dynamic environments while providing clearer explanations for their decisions.
“I think it shows the most promise for true intelligence,” he said.
IBM web domains
ibm.com, ibm.org, ibm-zcouncil.com, insights-on-business.com, jazz.net, mobilebusinessinsights.com, promontory.com, proveit.com, ptech.org, s81c.com, securityintelligence.com, skillsbuild.org, softlayer.com, storagecommunity.org, think-exchange.com, thoughtsoncloud.com, alphaevents.webcasts.com, ibm-cloud.github.io, ibmbigdatahub.com, bluemix.net, mybluemix.net, ibm.net, ibmcloud.com, galasa.dev, blueworkslive.com, swiss-quantum.ch, blueworkslive.com, cloudant.com, ibm.ie, ibm.fr, ibm.com.br, ibm.co, ibm.ca, community.watsonanalytics.com, datapower.com, skills.yourlearning.ibm.com, bluewolf.com, carbondesignsystem.com