GPT 4.5 SYSTEM CARD

Summary from the TLDR AI newsletter

The newest model from OpenAI is their largest yet. It was trained on the same recipe as 4o, which means it is a multimodal model. It is likely the last large pre-training run that OpenAI releases. They claim it isn't a frontier model, but don't provide much explanation. They do show that it has significantly reduced hallucinations compared to previous model generations.