GPT-4.5: "Not a frontier model"?

As GPT-4.5 was being released, the first material the public got access to was OpenAI’s system card for the model that details some capability evaluations and mostly safety estimates. Before the live stream and official blog post, we knew things were going to be weird because of this line: GPT-4.5 is not a frontier model. The updated system card in the launch blog post does not have this. Here’s the original system card if you need a reference: Gpt 4 5 System Card Original 3.9MB ∙ PDF file Download Download Regardless, someone at OpenAI felt the need to put that in. The peculiarity here summarizes a lot of the release. Some questions are still really not answered, like “Why did OpenAI release this?” That game theory is not in my purview. The main contradiction to the claims that it isn’t a frontier model is that this is the biggest model the general public has ever gotten to test. Scaling to this size of model did NOT make a clear jump in capabilities we are measuring. To summariz ... Read full article.