The model underwent more training than any model before it and is said to feel more ‘human’ and possess a better general knowledge of the world.
OpenAI released a new base model on Thursday called GPT-4.5, which the company said is its best and smartest model for chat yet. It’s not a reasoning model like OpenAI’s o1 and o3 models, but it can be used to train other models to be reasoning models. Notably, GPT-4.5 was trained using 10 times the computing power (scores of GPUs in data centers) than its predecessor, GPT-4o.
