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 ...

With all the AI news coming out each week, some of the more significant advancements can be hard to track. Grok 4 Fast is streamlined version of xAI's flagship Grok 4 model released back in July 2025.

OpenAI is upping the ante in artificial intelligence reasoning with the launch of o3-pro today, claiming it’s the most advanced model of its kind. The o3-pro model is a more powerful version of the ...