This week, Sakana AI, an Nvidia-backed startup that’s raised hundreds of millions of dollars from VC firms, made a remarkable claim. The company said it had created an AI system, the AI CUDA Engineer, that could effectively speed up the training of certain AI models by a factor of up to 100x. The only problem is, the system didn’t work. Users on X quickly discovered that Sakana’s system actually resulted in worse-than-average model training performance. According to one user, Sakana’s AI resulte...