After initial skepticism, with Gary Marcus declaring the end of pre- and post-training scaling, GPT-4.5 has now taken over the Chatbot Arena leaderboard.
GPT-4.5 provides further validation of the scaling hypothesis: On benchmarks such as GPQA Diamond, the increase from GPT-4 to 4.5 was actually greater than the increase from GPT-3.5 to 4.
GPT-4.5 shows remarkable improvements in verbal intelligence, creativity, and general comprehension. Tyler Cowen says GPT-4.5 made him laugh more this week than any human being. Sam Altman says GPT-4.5 is the first time people have emailed with such passion, asking OpenAI to promise never to stop offering a particular model, or even to replace it with an update.
GPT-4.5 will serve as a super strong base model, leading to significant gains in reasoning.
Exciting times.