We stress tested many frontier AI models for multimodal medical reasoning (including GPT-5, Claude 3.5, Gemini 2.5 Pro). They’re not ready. Faulty reasoning, use of inappropriate shortcuts, hallucinat

Study Finds Frontier AI Models Disagree on Two-Thirds of Basic Fact-Check Claims

A new study by researcher Kosta Jordanov at Lenz Research tested five frontier AI models (GPT-5.4, Claude Opus 4.7, Gemini 3 Pro, Gemini 3 P

OpenAI Research Explains Why Language Models Hallucinate and How to Improve Reliability

OpenAI's research paper explains that language models hallucinate because standard training and evaluation procedures reward guessing over a

ClinHallu: A New Benchmark for Diagnosing Hallucination Sources in Medical AI Reasoning

This paper introduces ClinHallu, a benchmark designed to diagnose stage-wise hallucinations in medical multimodal large language models (MLL

GPT-5 underperforms in medical language understanding [pdf]

Examining the Limitations of Transformer Models and the Gap to Human-Level AI

The article presents a skeptical perspective on claims about imminent Artificial General Intelligence (AGI), arguing that current transforme

GPT-5 fails basic reasoning test: Can't count the 'b's in "blueberry"

The article discusses the release of GPT-5 by OpenAI and the widespread disappointment in the AI community and beyond regarding its performa