“IT'S A LEMON”—OPENAI'S LARGEST AI MODEL EVER ARRIVES TO MIXED REVIEWS

Summary from the TLDR newsletter

Reviews say that OpenAI's newest AI model, GPT-4.5, is big, expensive, and slow. The model provides marginally better performance than GPT-4o at 30 times the cost for input and 15 times the cost for output. There seems to be diminishing returns in training unsupervised-learning large language models - scaling laws may have possibly met their natural end. OpenAI seems well aware of these limitations, which is why it released the model as a limited 'research preview'.