“The resulting stock market dive wiped $600 billion from NVIDIA’s valuation, which I believe is a record drop for a single company.”
More than 30 significant models came out in six months. GPT-4.5 cost $75 per million input tokens and OpenAI deprecated it six weeks later. Willison trusts leaderboards less, so his benchmark is SVG pelicans on bicycles, ranked by gpt-4.1-mini for 18 cents. It is a joke, and it is about as useful as the official numbers.