(Reuters) – OpenAI will not release "o3" as a standalone artificial intelligence model, as the ChatGPT maker looks to simplify its products, CEO Sam Altman said on Wednesday. The Microsoft-backed startup will release a GPT-5 model as a comprehensive AI system that will incorporate o3 along with other technologies, he said in a post on X. OpenAI had unveiled o3 and o3 mini models in December 2024. Its announcement comes at a time when companies in the U.S. are facing greater investor scrutiny over their massive spending on the technology, after Chinese startup DeepSeek unveiled a low-cost AI model last…