OpenAI says it is training a new AI model called GPT-4b micro with Retro Biosciences, a longevity science startup trying to extend human life by 10 yearsaccording to MIT Technology Review.

Retro, that is supported by Sam Altmanhas been working with OpenAI for almost a year on this research, according to the report. The GPT-4b micro model attempts to re-engineer proteins – a specific set called Yamanaka factors – that can turn human skin cells into youthful stem cells. Retro believes that these proteins are a good step towards building human organs and supplying replacement cells.

The model is slightly different from Google Nobel Prize winning AlphaFoldthat predicts the shape of proteins, but this appears to be the first OpenAI model custom-built for biological research. OpenAI and Retro told MIT Technology Review that they plan to release research on the model and its outputs.