OpenAI has partnered with Retro Biosciences, a startup focused on longevity science, to develop a new AI model called GPT-4b micro. This model aims to re-engineer Yamanaka factors, proteins that can transform human skin cells into stem cells, potentially extending human life by 10 years. Backed by Sam Altman, Retro has been collaborating with OpenAI for about a year. Unlike Google's Alphafold, this model is specifically designed for biological research. Both companies plan to release findings on the model's capabilities soon.