AI Research
OpenAI, Google, and Meta Researchers Warn We May Lose the Ability to Track AI Misbehavior

The more these models ‘think,’ the harder to understand they become.
Over 40 scientists from the world’s leading AI institutions, including OpenAI, Google DeepMind, Anthropic, and Meta, have come together to call for more research in a particular type of safety monitoring that allows humans to analyze how AI models “think.”
The scientists published a research paper on Tuesday that highlighted what is known as chain of thought (CoT) monitoring as a new yet fragile opportunity to boost AI safety. The paper was endorsed by prominent AI figures like OpenAI co-founders John Schulman and Ilya Sutskever as well as Nobel Prize laureate known as the “Godfather of AI,” Geoffrey Hinton.
In the paper, the scientists explained how modern reasoning models like ChatGPT are trained to “perform extended reasoning in CoT before taking actions or producing final outputs.” In other words, they “think out loud” through problems step by step, providing them a form of working memory for solving complex tasks.
“AI systems that ‘think’ in human language offer a unique opportunity for AI safety: we can monitor their chains of thought (CoT) for the intent to misbehave,” the paper’s authors wrote.
The researchers argue that CoT monitoring can help researchers detect when models begin to exploit flaws in their training, manipulate data, or fall victim to malicious user manipulation. Any issues that are found can then either be “blocked, or replaced with safer actions, or reviewed in more depth.”
OpenAI researchers have already used this technique in testing to find cases when AI models have had the phrase “Let’s Hack” in their CoT.
Current AI models perform this thinking in human language, but the researchers warn that this may not always be the case.
As developers rely more on reinforcement learning, which prioritizes correct outputs rather than how they arrived at them, future models may evolve away from using reasoning that humans can’t easily understand. Additionally, advanced models might eventually learn to suppress or obscure their reasoning if they detect that it’s being monitored.
In response, the researchers are urging AI developers to track and evaluate the CoT monitorability of their models and to treat this as a critical component of overall model safety. They even recommend that it become a key consideration when training and deploying new models.
AI Research
If I Could Only Buy 1 Artificial Intelligence (AI) Chip Stock Over The Next 10 Years, This Would Be It (Hint: It’s Not Nvidia)

While Nvidia continues to capture headlines, a critical enabler of the artificial intelligence (AI) infrastructure boom may be better positioned for long-term gains.
When investors debate the future of the artificial intelligence (AI) trade, the conversation generally finds its way back to the usual suspects: Nvidia, Advanced Micro Devices, and cloud hyperscalers like Microsoft, Amazon, and Alphabet.
Each of these companies is racing to design GPUs or develop custom accelerators in-house. But behind this hardware, there’s a company that benefits no matter which chip brand comes out ahead: Taiwan Semiconductor Manufacturing (TSM -3.05%).
Let’s unpack why Taiwan Semi is my top AI chip stock over the next 10 years, and assess whether now is an opportune time to scoop up some shares.
Agnostic to the winner, leveraged to the trend
As the world’s leading semiconductor foundry, TSMC manufactures chips for nearly every major AI developer — from Nvidia and AMD to Amazon’s custom silicon initiatives, dubbed Trainium and Inferentia.
Unlike many of its peers in the chip space that rely on new product cycles to spur demand, Taiwan Semi’s business model is fundamentally agnostic. Whether demand is allocated toward GPUs, accelerators, or specialized cloud silicon, all roads lead back to TSMC’s fabrication capabilities.
With nearly 70% market share in the global foundry space, Taiwan Semi’s dominance is hard to ignore. Such a commanding lead over the competition provides the company with unmatched structural demand visibility — a trend that appears to be accelerating as AI infrastructure spend remains on the rise.
Image source: Getty Images.
Scaling with more sophisticated AI applications
At the moment, AI development is still concentrated on training and refining large language models (LLMs) and embedding them into downstream software applications.
The next wave of AI will expand into far more diverse and demanding use cases — autonomous systems, robotics, and quantum computing remain in their infancy. At scale, these workloads will place greater demands on silicon than today’s chips can support.
Meeting these demands doesn’t simply require additional investments in chips. Rather, it requires chips engineered for new levels of efficiency, performance, and power management. This is where TSMC’s competitive advantages begin to compound.
With each successive generation of process technology, the company has a unique opportunity to widen the performance gap between itself and rivals like Samsung or Intel.
Since Taiwan Semi already has such a large footprint in the foundry landscape, next-generation design complexities give the company a chance to further lock in deeper, stickier customer relationships.
TSMC’s valuation and the case for expansion
Taiwan Semi may trade at a forward price-to-earnings (P/E) ratio of 24, but dismissing the stock as “expensive” overlooks the company’s extraordinary positioning in the AI realm. To me, the company’s valuation reflects a robust growth outlook, improving earnings prospects, and a declining risk premium.
TSM PE Ratio (Forward) data by YCharts
Unlike many of its semiconductor peers, which are vulnerable to cyclicality headwinds, TSMC has become an indispensable utility for many of the world’s largest AI developers, evolving into one of the backbones of the ongoing infrastructure boom.
The scale of investment behind current AI infrastructure is jaw-dropping. Hyperscalers are investing staggering sums to expand and modernize data centers, and at the heart of each new buildout is an unrelenting demand for more chips. Moreover, each of these companies is exploring more advanced use cases that will, at some point, require next-generation processing capabilities.
These dynamics position Taiwan Semi at the crossroad of immediate growth and enduring long-term expansion, as AI infrastructure swiftly evolves from a constant driver of growth today into a multidecade secular theme.
TSMC’s manufacturing dominance ensures that its services will continue to witness robust demand for years to come. For this reason, I think Taiwan Semi is positioned to experience further valuation expansion over the next decade as the infrastructure chapter of the AI story continues to unfold.
While there are many great opportunities in the chip space, TSMC stands alone. I see it as perhaps the most unique, durable semiconductor stock to own amid a volatile technology landscape over the next several years.
Adam Spatacco has positions in Alphabet, Amazon, Microsoft, and Nvidia. The Motley Fool has positions in and recommends Advanced Micro Devices, Alphabet, Amazon, Intel, Microsoft, Nvidia, and Taiwan Semiconductor Manufacturing. The Motley Fool recommends the following options: long January 2026 $395 calls on Microsoft, short August 2025 $24 calls on Intel, short January 2026 $405 calls on Microsoft, and short November 2025 $21 puts on Intel. The Motley Fool has a disclosure policy.
AI Research
Researchers train AI to diagnose heart failure in rural patients using low-tech electrocardiograms

Concerned about the ability of artificial intelligence models trained on data from urban demographics to make the right medical diagnoses for rural populations, West Virginia University computer scientists have developed several AI models that can identify signs of heart failure in patients from Appalachia.
Prashnna Gyawali, assistant professor in the Lane Department of Computer Science and Electrical Engineering at the WVU Benjamin M. Statler College of Engineering and Mineral Resources, said heart failure—a chronic, persistent condition in which the heart cannot pump enough blood to meet the body’s need for oxygen—is one of the most pressing national and global health issues, and one that hits rural regions of the U.S. especially hard.
Despite the outsized impact of heart failure on rural populations, AI models are currently being trained to diagnose the disease using data representing patients from urban and suburban areas like Stanford, California, Gyawali said.
“Imagine Jane Doe, a 62-year-old woman living in a rural Appalachian community,” he suggested. “She has limited access to specialty care, relies on a small local clinic, and her lifestyle, diet and health history reflect the realities of her environment: high physical labor, minimal preventive care, and increased exposure to environmental risk factors like coal dust or poor air quality. Jane begins to experience fatigue and shortness of breath—symptoms that could point to heart failure.
“An AI system, trained primarily on data from urban hospitals in more affluent, coastal areas, evaluates Jane’s lab results. But because the system was not trained on patients who share Jane’s socioeconomic and environmental context, it fails to recognize her condition as urgent or abnormal,” Gyawali said. “This is why this work matters. By training AI models on data from West Virginia patients, we aim to ensure people like Jane receive accurate diagnoses, no matter where they live or how their lives differ from national averages.”
The researchers identified the AI models that were most accurate at diagnosing heart failure in an anonymized sample of more than 55,000 patients who received medical care in West Virginia. They also pinpointed the exact parameters for providing the AI models with data that most enhanced diagnostic accuracy. The findings appear in Scientific Reports, a Nature portfolio journal.
Doctoral student Alina Devkota emphasized they trained the AI models to work from patients’ electrocardiogram results, rather than the echocardiogram readings typical for patient data from urban areas.
Electrocardiograms rely on round electrodes stuck to the patient’s torso to record electrical signals from the heart. According to Devkota, they don’t require specialized equipment or specialized training to operate, but they still provide valuable insights into heart function.
“One of the criteria to diagnose heart failure is by measuring the ‘ejection fraction,’ or how much blood is pumped out of the heart with every beat, and the gold standard for doing that is with echocardiography, which uses sound waves to create images of the heart and the blood flowing through its valves,” she said.
“But echocardiography is expensive, time-consuming and often unavailable to patients in the very same rural Appalachian states that have the highest prevalence of heart failure across the nation. West Virginia, for example, ranks first in the U.S. for the prevalence of heart attack and coronary heart disease, but many West Virginians don’t have local access to high-tech echocardiograms. They do have access to inexpensive electrocardiograms, so we tested whether AI models could use electrocardiogram readings to predict a patient’s ejection fraction.”
Devkota, Gyawali and their colleagues trained several AI models on patient records from 28 hospitals across West Virginia. The AI models used either “deep learning,” which relies on multilayered neural networks, or “non-deep learning,” which relies on simpler algorithms, to analyze the patient records and draw conclusions.
The researchers found the deep-learning models, particularly one called ResNet, did best at correctly predicting a patient’s ejection fraction based on data from 12-lead electrocardiograms, with the results suggesting that a larger dataset for training would yield even better results. They also found that providing the AI models with specific “leads,” or combinations of data from different electrode pairs, affected how accurate the models’ ejection fraction predictions were.
Gyawali said while AI models are not yet being used in clinical practice due to reliability concerns, training an AI to successfully estimate ejection fraction from electrocardiogram signals could soon give clinicians an edge in protecting patients’ cardiac health.
“Heart failure affects more than six million Americans today, and factors like our aging population mean the risk is growing rapidly—approximately 1 in 4 people alive today will experience heart failure during their lifetimes. The prevalence is even higher in rural Appalachia, so it’s critical the people here do not continue to be overlooked.”
Additional WVU contributors to the research included Rukesh Prajapati, graduate research assistant; Amr El-Wakeel, assistant professor; Donald Adjeroh, professor and chair for computer science; and Brijesh Patel, assistant professor in the WVU Health Sciences School of Medicine.
More information:
AI analysis for ejection fraction estimation from 12-lead ECG, Scientific Reports (2025). DOI: 10.1038/s41598-025-97113-0scientific
Citation:
Researchers train AI to diagnose heart failure in rural patients using low-tech electrocardiograms (2025, August 31)
retrieved 31 August 2025
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