OpenAI is set to release GPT-4.5 Turbo, with a knowledge cutoff date of June 2024, featuring a 250k context window. The model is expected to be the fastest, most accurate, and most scalable LLM from OpenAI, incorporating search results from Bing and Microsoft Copilot. The training process likely involved 8 months of training and 1 month of safety checks using 25,000 A100 GPUs. The release date is speculated to be around July 2024, with anticipation and speculation surrounding the upcoming model.